21930736

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{331}}^1$

素因数の和:481

約数の個数: 40

約数和(自身を含む): 44090928

約数和(自身を除く): 22160192

約数列:

[1, 2, 4, 8, 16, 41, 82, 101, 164, 202, 328, 331, 404, 656, 662, 808, 1324, 1616, 2648, 4141, 5296, 8282, 13571, 16564, 27142, 33128, 33431, 54284, 66256, 66862, 108568, 133724, 217136, 267448, 534896, 1370671, 2741342, 5482684, 10965368, 21930736]

約数ペア:

[(1, 21930736), (2, 10965368), (4, 5482684), (8, 2741342), (16, 1370671), (41, 534896), (82, 267448), (101, 217136), (164, 133724), (202, 108568), (328, 66862), (331, 66256), (404, 54284), (656, 33431), (662, 33128), (808, 27142), (1324, 16564), (1616, 13571), (2648, 8282), (4141, 5296)]