21293200

素因数分解:

$2^4\times 5^2\times {\mathrm{53233}}^1$

素因数の和:53251

約数の個数: 30

約数和(自身を含む): 51157874

約数和(自身を除く): 29864674

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53233, 106466, 212932, 266165, 425864, 532330, 851728, 1064660, 1330825, 2129320, 2661650, 4258640, 5323300, 10646600, 21293200]

約数ペア:

[(1, 21293200), (2, 10646600), (4, 5323300), (5, 4258640), (8, 2661650), (10, 2129320), (16, 1330825), (20, 1064660), (25, 851728), (40, 532330), (50, 425864), (80, 266165), (100, 212932), (200, 106466), (400, 53233)]