21219796

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 42230160

約数和(自身を除く): 21010364

約数列:

[1, 2, 4, 13, 26, 37, 41, 52, 74, 82, 148, 164, 269, 481, 533, 538, 962, 1066, 1076, 1517, 1924, 2132, 3034, 3497, 6068, 6994, 9953, 11029, 13988, 19721, 19906, 22058, 39442, 39812, 44116, 78884, 129389, 143377, 258778, 286754, 408073, 517556, 573508, 816146, 1632292, 5304949, 10609898, 21219796]

約数ペア:

[(1, 21219796), (2, 10609898), (4, 5304949), (13, 1632292), (26, 816146), (37, 573508), (41, 517556), (52, 408073), (74, 286754), (82, 258778), (148, 143377), (164, 129389), (269, 78884), (481, 44116), (533, 39812), (538, 39442), (962, 22058), (1066, 19906), (1076, 19721), (1517, 13988), (1924, 11029), (2132, 9953), (3034, 6994), (3497, 6068)]