20645878

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{487}}^1$

素因数の和:588

約数の個数: 32

約数和(自身を含む): 35417088

約数和(自身を除く): 14771210

約数列:

[1, 2, 11, 22, 41, 47, 82, 94, 451, 487, 517, 902, 974, 1034, 1927, 3854, 5357, 10714, 19967, 21197, 22889, 39934, 42394, 45778, 219637, 251779, 439274, 503558, 938449, 1876898, 10322939, 20645878]

約数ペア:

[(1, 20645878), (2, 10322939), (11, 1876898), (22, 938449), (41, 503558), (47, 439274), (82, 251779), (94, 219637), (451, 45778), (487, 42394), (517, 39934), (902, 22889), (974, 21197), (1034, 19967), (1927, 10714), (3854, 5357)]