21546710

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{389}}^1$

素因数の和:616

約数の個数: 32

約数和(自身を含む): 40435200

約数和(自身を除く): 18888490

約数列:

[1, 2, 5, 10, 29, 58, 145, 191, 290, 382, 389, 778, 955, 1910, 1945, 3890, 5539, 11078, 11281, 22562, 27695, 55390, 56405, 74299, 112810, 148598, 371495, 742990, 2154671, 4309342, 10773355, 21546710]

約数ペア:

[(1, 21546710), (2, 10773355), (5, 4309342), (10, 2154671), (29, 742990), (58, 371495), (145, 148598), (191, 112810), (290, 74299), (382, 56405), (389, 55390), (778, 27695), (955, 22562), (1910, 11281), (1945, 11078), (3890, 5539)]