21342760

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{3581}}^1$

素因数の和:3741

約数の個数: 32

約数和(自身を含む): 48357000

約数和(自身を除く): 27014240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 3581, 5960, 7162, 14324, 17905, 28648, 35810, 71620, 143240, 533569, 1067138, 2134276, 2667845, 4268552, 5335690, 10671380, 21342760]

約数ペア:

[(1, 21342760), (2, 10671380), (4, 5335690), (5, 4268552), (8, 2667845), (10, 2134276), (20, 1067138), (40, 533569), (149, 143240), (298, 71620), (596, 35810), (745, 28648), (1192, 17905), (1490, 14324), (2980, 7162), (3581, 5960)]