21171050

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^2\times {\mathrm{229}}^1$

素因数の和:327

約数の個数: 36

約数和(自身を含む): 40491270

約数和(自身を除く): 19320220

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 215, 229, 430, 458, 1075, 1145, 1849, 2150, 2290, 3698, 5725, 9245, 9847, 11450, 18490, 19694, 46225, 49235, 92450, 98470, 246175, 423421, 492350, 846842, 2117105, 4234210, 10585525, 21171050]

約数ペア:

[(1, 21171050), (2, 10585525), (5, 4234210), (10, 2117105), (25, 846842), (43, 492350), (50, 423421), (86, 246175), (215, 98470), (229, 92450), (430, 49235), (458, 46225), (1075, 19694), (1145, 18490), (1849, 11450), (2150, 9847), (2290, 9245), (3698, 5725)]