21265810

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{125093}}^1$

素因数の和:125117

約数の個数: 16

約数和(自身を含む): 40530456

約数和(自身を除く): 19264646

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 125093, 250186, 625465, 1250930, 2126581, 4253162, 10632905, 21265810]

約数ペア:

[(1, 21265810), (2, 10632905), (5, 4253162), (10, 2126581), (17, 1250930), (34, 625465), (85, 250186), (170, 125093)]