21419600

素因数分解:

$2^4\times 5^2\times {\mathrm{53549}}^1$

素因数の和:53567

約数の個数: 30

約数和(自身を含む): 51461550

約数和(自身を除く): 30041950

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53549, 107098, 214196, 267745, 428392, 535490, 856784, 1070980, 1338725, 2141960, 2677450, 4283920, 5354900, 10709800, 21419600]

約数ペア:

[(1, 21419600), (2, 10709800), (4, 5354900), (5, 4283920), (8, 2677450), (10, 2141960), (16, 1338725), (20, 1070980), (25, 856784), (40, 535490), (50, 428392), (80, 267745), (100, 214196), (200, 107098), (400, 53549)]