21866416

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{503}}^1$

素因数の和:554

約数の個数: 80

約数和(自身を含む): 52496640

約数和(自身を除く): 30630224

約数列:

[1, 2, 4, 8, 11, 13, 16, 19, 22, 26, 38, 44, 52, 76, 88, 104, 143, 152, 176, 208, 209, 247, 286, 304, 418, 494, 503, 572, 836, 988, 1006, 1144, 1672, 1976, 2012, 2288, 2717, 3344, 3952, 4024, 5434, 5533, 6539, 8048, 9557, 10868, 11066, 13078, 19114, 21736, 22132, 26156, 38228, 43472, 44264, 52312, 71929, 76456, 88528, 104624, 105127, 124241, 143858, 152912, 210254, 248482, 287716, 420508, 496964, 575432, 841016, 993928, 1150864, 1366651, 1682032, 1987856, 2733302, 5466604, 10933208, 21866416]

約数ペア:

[(1, 21866416), (2, 10933208), (4, 5466604), (8, 2733302), (11, 1987856), (13, 1682032), (16, 1366651), (19, 1150864), (22, 993928), (26, 841016), (38, 575432), (44, 496964), (52, 420508), (76, 287716), (88, 248482), (104, 210254), (143, 152912), (152, 143858), (176, 124241), (208, 105127), (209, 104624), (247, 88528), (286, 76456), (304, 71929), (418, 52312), (494, 44264), (503, 43472), (572, 38228), (836, 26156), (988, 22132), (1006, 21736), (1144, 19114), (1672, 13078), (1976, 11066), (2012, 10868), (2288, 9557), (2717, 8048), (3344, 6539), (3952, 5533), (4024, 5434)]