21853720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{78049}}^1$

素因数の和:78067

約数の個数: 32

約数和(自身を含む): 56196000

約数和(自身を除く): 34342280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 78049, 156098, 312196, 390245, 546343, 624392, 780490, 1092686, 1560980, 2185372, 2731715, 3121960, 4370744, 5463430, 10926860, 21853720]

約数ペア:

[(1, 21853720), (2, 10926860), (4, 5463430), (5, 4370744), (7, 3121960), (8, 2731715), (10, 2185372), (14, 1560980), (20, 1092686), (28, 780490), (35, 624392), (40, 546343), (56, 390245), (70, 312196), (140, 156098), (280, 78049)]