21920350

素因数分解:

$2^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{7187}}^1$

素因数の和:7260

約数の個数: 24

約数和(自身を含む): 41446008

約数和(自身を除く): 19525658

約数列:

[1, 2, 5, 10, 25, 50, 61, 122, 305, 610, 1525, 3050, 7187, 14374, 35935, 71870, 179675, 359350, 438407, 876814, 2192035, 4384070, 10960175, 21920350]

約数ペア:

[(1, 21920350), (2, 10960175), (5, 4384070), (10, 2192035), (25, 876814), (50, 438407), (61, 359350), (122, 179675), (305, 71870), (610, 35935), (1525, 14374), (3050, 7187)]