20977704

素因数分解:

$2^3\times 3^7\times {\mathrm{11}}^1\times {\mathrm{109}}^1$

素因数の和:147

約数の個数: 128

約数和(自身を含む): 64944000

約数和(自身を除く): 43966296

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 27, 33, 36, 44, 54, 66, 72, 81, 88, 99, 108, 109, 132, 162, 198, 216, 218, 243, 264, 297, 324, 327, 396, 436, 486, 594, 648, 654, 729, 792, 872, 891, 972, 981, 1188, 1199, 1308, 1458, 1782, 1944, 1962, 2187, 2376, 2398, 2616, 2673, 2916, 2943, 3564, 3597, 3924, 4374, 4796, 5346, 5832, 5886, 7128, 7194, 7848, 8019, 8748, 8829, 9592, 10692, 10791, 11772, 14388, 16038, 17496, 17658, 21384, 21582, 23544, 24057, 26487, 28776, 32076, 32373, 35316, 43164, 48114, 52974, 64152, 64746, 70632, 79461, 86328, 96228, 97119, 105948, 129492, 158922, 192456, 194238, 211896, 238383, 258984, 291357, 317844, 388476, 476766, 582714, 635688, 776952, 874071, 953532, 1165428, 1748142, 1907064, 2330856, 2622213, 3496284, 5244426, 6992568, 10488852, 20977704]

約数ペア:

[(1, 20977704), (2, 10488852), (3, 6992568), (4, 5244426), (6, 3496284), (8, 2622213), (9, 2330856), (11, 1907064), (12, 1748142), (18, 1165428), (22, 953532), (24, 874071), (27, 776952), (33, 635688), (36, 582714), (44, 476766), (54, 388476), (66, 317844), (72, 291357), (81, 258984), (88, 238383), (99, 211896), (108, 194238), (109, 192456), (132, 158922), (162, 129492), (198, 105948), (216, 97119), (218, 96228), (243, 86328), (264, 79461), (297, 70632), (324, 64746), (327, 64152), (396, 52974), (436, 48114), (486, 43164), (594, 35316), (648, 32373), (654, 32076), (729, 28776), (792, 26487), (872, 24057), (891, 23544), (972, 21582), (981, 21384), (1188, 17658), (1199, 17496), (1308, 16038), (1458, 14388), (1782, 11772), (1944, 10791), (1962, 10692), (2187, 9592), (2376, 8829), (2398, 8748), (2616, 8019), (2673, 7848), (2916, 7194), (2943, 7128), (3564, 5886), (3597, 5832), (3924, 5346), (4374, 4796)]