21954416

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1579}}^1$

素因数の和:1677

約数の個数: 40

約数和(自身を含む): 47020800

約数和(自身を除く): 25066384

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 79, 88, 158, 176, 316, 632, 869, 1264, 1579, 1738, 3158, 3476, 6316, 6952, 12632, 13904, 17369, 25264, 34738, 69476, 124741, 138952, 249482, 277904, 498964, 997928, 1372151, 1995856, 2744302, 5488604, 10977208, 21954416]

約数ペア:

[(1, 21954416), (2, 10977208), (4, 5488604), (8, 2744302), (11, 1995856), (16, 1372151), (22, 997928), (44, 498964), (79, 277904), (88, 249482), (158, 138952), (176, 124741), (316, 69476), (632, 34738), (869, 25264), (1264, 17369), (1579, 13904), (1738, 12632), (3158, 6952), (3476, 6316)]