20954222212

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{313517}}^1$

素因数の和:313577

約数の個数: 72

約数和(自身を含む): 48035973888

約数和(自身を除く): 27081751676

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 49, 62, 77, 98, 124, 154, 196, 217, 308, 341, 434, 539, 682, 868, 1078, 1364, 1519, 2156, 2387, 3038, 4774, 6076, 9548, 16709, 33418, 66836, 313517, 627034, 1254068, 2194619, 3448687, 4389238, 6897374, 8778476, 9719027, 13794748, 15362333, 19438054, 24140809, 30724666, 38876108, 48281618, 61449332, 68033189, 96563236, 106909297, 136066378, 168985663, 213818594, 272132756, 337971326, 427637188, 476232323, 675942652, 748365079, 952464646, 1496730158, 1904929292, 2993460316, 5238555553, 10477111106, 20954222212]

約数ペア:

[(1, 20954222212), (2, 10477111106), (4, 5238555553), (7, 2993460316), (11, 1904929292), (14, 1496730158), (22, 952464646), (28, 748365079), (31, 675942652), (44, 476232323), (49, 427637188), (62, 337971326), (77, 272132756), (98, 213818594), (124, 168985663), (154, 136066378), (196, 106909297), (217, 96563236), (308, 68033189), (341, 61449332), (434, 48281618), (539, 38876108), (682, 30724666), (868, 24140809), (1078, 19438054), (1364, 15362333), (1519, 13794748), (2156, 9719027), (2387, 8778476), (3038, 6897374), (4774, 4389238), (6076, 3448687), (9548, 2194619), (16709, 1254068), (33418, 627034), (66836, 313517)]