21670544

素因数分解:

$2^4\times 7^2\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:364

約数の個数: 60

約数和(自身を含む): 49447728

約数和(自身を除く): 27777184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 131, 196, 211, 262, 392, 422, 524, 784, 844, 917, 1048, 1477, 1688, 1834, 2096, 2954, 3376, 3668, 5908, 6419, 7336, 10339, 11816, 12838, 14672, 20678, 23632, 25676, 27641, 41356, 51352, 55282, 82712, 102704, 110564, 165424, 193487, 221128, 386974, 442256, 773948, 1354409, 1547896, 2708818, 3095792, 5417636, 10835272, 21670544]

約数ペア:

[(1, 21670544), (2, 10835272), (4, 5417636), (7, 3095792), (8, 2708818), (14, 1547896), (16, 1354409), (28, 773948), (49, 442256), (56, 386974), (98, 221128), (112, 193487), (131, 165424), (196, 110564), (211, 102704), (262, 82712), (392, 55282), (422, 51352), (524, 41356), (784, 27641), (844, 25676), (917, 23632), (1048, 20678), (1477, 14672), (1688, 12838), (1834, 11816), (2096, 10339), (2954, 7336), (3376, 6419), (3668, 5908)]