20881476

素因数分解:

$2^2\times 3^7\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1$

素因数の和:74

約数の個数: 192

約数和(自身を含む): 70533120

約数和(自身を除く): 49651644

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 27, 28, 31, 33, 36, 42, 44, 54, 62, 63, 66, 77, 81, 84, 93, 99, 108, 124, 126, 132, 154, 162, 186, 189, 198, 217, 231, 243, 252, 279, 297, 308, 324, 341, 372, 378, 396, 434, 462, 486, 558, 567, 594, 651, 682, 693, 729, 756, 837, 868, 891, 924, 972, 1023, 1116, 1134, 1188, 1302, 1364, 1386, 1458, 1674, 1701, 1782, 1953, 2046, 2079, 2187, 2268, 2387, 2511, 2604, 2673, 2772, 2916, 3069, 3348, 3402, 3564, 3906, 4092, 4158, 4374, 4774, 5022, 5103, 5346, 5859, 6138, 6237, 6804, 7161, 7533, 7812, 8019, 8316, 8748, 9207, 9548, 10044, 10206, 10692, 11718, 12276, 12474, 14322, 15066, 15309, 16038, 17577, 18414, 18711, 20412, 21483, 22599, 23436, 24057, 24948, 27621, 28644, 30132, 30618, 32076, 35154, 36828, 37422, 42966, 45198, 48114, 52731, 55242, 56133, 61236, 64449, 67797, 70308, 74844, 82863, 85932, 90396, 96228, 105462, 110484, 112266, 128898, 135594, 158193, 165726, 168399, 193347, 210924, 224532, 248589, 257796, 271188, 316386, 331452, 336798, 386694, 474579, 497178, 580041, 632772, 673596, 745767, 773388, 949158, 994356, 1160082, 1491534, 1740123, 1898316, 2320164, 2983068, 3480246, 5220369, 6960492, 10440738, 20881476]

約数ペア:

[(1, 20881476), (2, 10440738), (3, 6960492), (4, 5220369), (6, 3480246), (7, 2983068), (9, 2320164), (11, 1898316), (12, 1740123), (14, 1491534), (18, 1160082), (21, 994356), (22, 949158), (27, 773388), (28, 745767), (31, 673596), (33, 632772), (36, 580041), (42, 497178), (44, 474579), (54, 386694), (62, 336798), (63, 331452), (66, 316386), (77, 271188), (81, 257796), (84, 248589), (93, 224532), (99, 210924), (108, 193347), (124, 168399), (126, 165726), (132, 158193), (154, 135594), (162, 128898), (186, 112266), (189, 110484), (198, 105462), (217, 96228), (231, 90396), (243, 85932), (252, 82863), (279, 74844), (297, 70308), (308, 67797), (324, 64449), (341, 61236), (372, 56133), (378, 55242), (396, 52731), (434, 48114), (462, 45198), (486, 42966), (558, 37422), (567, 36828), (594, 35154), (651, 32076), (682, 30618), (693, 30132), (729, 28644), (756, 27621), (837, 24948), (868, 24057), (891, 23436), (924, 22599), (972, 21483), (1023, 20412), (1116, 18711), (1134, 18414), (1188, 17577), (1302, 16038), (1364, 15309), (1386, 15066), (1458, 14322), (1674, 12474), (1701, 12276), (1782, 11718), (1953, 10692), (2046, 10206), (2079, 10044), (2187, 9548), (2268, 9207), (2387, 8748), (2511, 8316), (2604, 8019), (2673, 7812), (2772, 7533), (2916, 7161), (3069, 6804), (3348, 6237), (3402, 6138), (3564, 5859), (3906, 5346), (4092, 5103), (4158, 5022), (4374, 4774)]