21151208

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{7013}}^1$

素因数の和:7061

約数の個数: 32

約数和(自身を含む): 44188200

約数和(自身を除く): 23036992

約数列:

[1, 2, 4, 8, 13, 26, 29, 52, 58, 104, 116, 232, 377, 754, 1508, 3016, 7013, 14026, 28052, 56104, 91169, 182338, 203377, 364676, 406754, 729352, 813508, 1627016, 2643901, 5287802, 10575604, 21151208]

約数ペア:

[(1, 21151208), (2, 10575604), (4, 5287802), (8, 2643901), (13, 1627016), (26, 813508), (29, 729352), (52, 406754), (58, 364676), (104, 203377), (116, 182338), (232, 91169), (377, 56104), (754, 28052), (1508, 14026), (3016, 7013)]