20403428

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{1549}}^1$

素因数の和:1679

約数の個数: 24

約数和(自身を含む): 37107000

約数和(自身を除く): 16703572

約数列:

[1, 2, 4, 37, 74, 89, 148, 178, 356, 1549, 3098, 3293, 6196, 6586, 13172, 57313, 114626, 137861, 229252, 275722, 551444, 5100857, 10201714, 20403428]

約数ペア:

[(1, 20403428), (2, 10201714), (4, 5100857), (37, 551444), (74, 275722), (89, 229252), (148, 137861), (178, 114626), (356, 57313), (1549, 13172), (3098, 6586), (3293, 6196)]