21462850

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{227}}^1$

素因数の和:331

約数の個数: 48

約数和(自身を含む): 42068736

約数和(自身を除く): 20605886

約数列:

[1, 2, 5, 10, 25, 31, 50, 61, 62, 122, 155, 227, 305, 310, 454, 610, 775, 1135, 1525, 1550, 1891, 2270, 3050, 3782, 5675, 7037, 9455, 11350, 13847, 14074, 18910, 27694, 35185, 47275, 69235, 70370, 94550, 138470, 175925, 346175, 351850, 429257, 692350, 858514, 2146285, 4292570, 10731425, 21462850]

約数ペア:

[(1, 21462850), (2, 10731425), (5, 4292570), (10, 2146285), (25, 858514), (31, 692350), (50, 429257), (61, 351850), (62, 346175), (122, 175925), (155, 138470), (227, 94550), (305, 70370), (310, 69235), (454, 47275), (610, 35185), (775, 27694), (1135, 18910), (1525, 14074), (1550, 13847), (1891, 11350), (2270, 9455), (3050, 7037), (3782, 5675)]