21075720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{175631}}^1$

素因数の和:175645

約数の個数: 32

約数和(自身を含む): 63227520

約数和(自身を除く): 42151800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 175631, 351262, 526893, 702524, 878155, 1053786, 1405048, 1756310, 2107572, 2634465, 3512620, 4215144, 5268930, 7025240, 10537860, 21075720]

約数ペア:

[(1, 21075720), (2, 10537860), (3, 7025240), (4, 5268930), (5, 4215144), (6, 3512620), (8, 2634465), (10, 2107572), (12, 1756310), (15, 1405048), (20, 1053786), (24, 878155), (30, 702524), (40, 526893), (60, 351262), (120, 175631)]