21568932

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:310

約数の個数: 144

約数和(自身を含む): 70447104

約数和(自身を除く): 48878172

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 31, 33, 36, 42, 44, 62, 63, 66, 77, 84, 93, 99, 124, 126, 132, 154, 186, 198, 217, 231, 251, 252, 279, 308, 341, 372, 396, 434, 462, 502, 558, 651, 682, 693, 753, 868, 924, 1004, 1023, 1116, 1302, 1364, 1386, 1506, 1757, 1953, 2046, 2259, 2387, 2604, 2761, 2772, 3012, 3069, 3514, 3906, 4092, 4518, 4774, 5271, 5522, 6138, 7028, 7161, 7781, 7812, 8283, 9036, 9548, 10542, 11044, 12276, 14322, 15562, 15813, 16566, 19327, 21084, 21483, 23343, 24849, 28644, 31124, 31626, 33132, 38654, 42966, 46686, 49698, 54467, 57981, 63252, 70029, 77308, 85591, 85932, 93372, 99396, 108934, 115962, 140058, 163401, 171182, 173943, 217868, 231924, 256773, 280116, 326802, 342364, 347886, 490203, 513546, 599137, 653604, 695772, 770319, 980406, 1027092, 1198274, 1540638, 1797411, 1960812, 2396548, 3081276, 3594822, 5392233, 7189644, 10784466, 21568932]

約数ペア:

[(1, 21568932), (2, 10784466), (3, 7189644), (4, 5392233), (6, 3594822), (7, 3081276), (9, 2396548), (11, 1960812), (12, 1797411), (14, 1540638), (18, 1198274), (21, 1027092), (22, 980406), (28, 770319), (31, 695772), (33, 653604), (36, 599137), (42, 513546), (44, 490203), (62, 347886), (63, 342364), (66, 326802), (77, 280116), (84, 256773), (93, 231924), (99, 217868), (124, 173943), (126, 171182), (132, 163401), (154, 140058), (186, 115962), (198, 108934), (217, 99396), (231, 93372), (251, 85932), (252, 85591), (279, 77308), (308, 70029), (341, 63252), (372, 57981), (396, 54467), (434, 49698), (462, 46686), (502, 42966), (558, 38654), (651, 33132), (682, 31626), (693, 31124), (753, 28644), (868, 24849), (924, 23343), (1004, 21483), (1023, 21084), (1116, 19327), (1302, 16566), (1364, 15813), (1386, 15562), (1506, 14322), (1757, 12276), (1953, 11044), (2046, 10542), (2259, 9548), (2387, 9036), (2604, 8283), (2761, 7812), (2772, 7781), (3012, 7161), (3069, 7028), (3514, 6138), (3906, 5522), (4092, 5271), (4518, 4774)]