20892424

素因数分解:

$2^3\times 7^2\times {\mathrm{223}}^1\times {\mathrm{239}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 45964800

約数和(自身を除く): 25072376

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 223, 239, 392, 446, 478, 892, 956, 1561, 1673, 1784, 1912, 3122, 3346, 6244, 6692, 10927, 11711, 12488, 13384, 21854, 23422, 43708, 46844, 53297, 87416, 93688, 106594, 213188, 373079, 426376, 746158, 1492316, 2611553, 2984632, 5223106, 10446212, 20892424]

約数ペア:

[(1, 20892424), (2, 10446212), (4, 5223106), (7, 2984632), (8, 2611553), (14, 1492316), (28, 746158), (49, 426376), (56, 373079), (98, 213188), (196, 106594), (223, 93688), (239, 87416), (392, 53297), (446, 46844), (478, 43708), (892, 23422), (956, 21854), (1561, 13384), (1673, 12488), (1784, 11711), (1912, 10927), (3122, 6692), (3346, 6244)]