20695444

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{331}}^1$

素因数の和:389

約数の個数: 72

約数和(自身を含む): 47688480

約数和(自身を除く): 26993036

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 29, 44, 49, 58, 77, 98, 116, 154, 196, 203, 308, 319, 331, 406, 539, 638, 662, 812, 1078, 1276, 1324, 1421, 2156, 2233, 2317, 2842, 3641, 4466, 4634, 5684, 7282, 8932, 9268, 9599, 14564, 15631, 16219, 19198, 25487, 31262, 32438, 38396, 50974, 62524, 64876, 67193, 101948, 105589, 134386, 178409, 211178, 268772, 356818, 422356, 470351, 713636, 739123, 940702, 1478246, 1881404, 2956492, 5173861, 10347722, 20695444]

約数ペア:

[(1, 20695444), (2, 10347722), (4, 5173861), (7, 2956492), (11, 1881404), (14, 1478246), (22, 940702), (28, 739123), (29, 713636), (44, 470351), (49, 422356), (58, 356818), (77, 268772), (98, 211178), (116, 178409), (154, 134386), (196, 105589), (203, 101948), (308, 67193), (319, 64876), (331, 62524), (406, 50974), (539, 38396), (638, 32438), (662, 31262), (812, 25487), (1078, 19198), (1276, 16219), (1324, 15631), (1421, 14564), (2156, 9599), (2233, 9268), (2317, 8932), (2842, 7282), (3641, 5684), (4466, 4634)]