21369760

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5807}}^1$

素因数の和:5845

約数の個数: 48

約数和(自身を含む): 52690176

約数和(自身を除く): 31320416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 5807, 11614, 23228, 29035, 46456, 58070, 92912, 116140, 133561, 185824, 232280, 267122, 464560, 534244, 667805, 929120, 1068488, 1335610, 2136976, 2671220, 4273952, 5342440, 10684880, 21369760]

約数ペア:

[(1, 21369760), (2, 10684880), (4, 5342440), (5, 4273952), (8, 2671220), (10, 2136976), (16, 1335610), (20, 1068488), (23, 929120), (32, 667805), (40, 534244), (46, 464560), (80, 267122), (92, 232280), (115, 185824), (160, 133561), (184, 116140), (230, 92912), (368, 58070), (460, 46456), (736, 29035), (920, 23228), (1840, 11614), (3680, 5807)]