21628276

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{317}}^1\times {\mathrm{461}}^1$

素因数の和:819

約数の個数: 24

約数和(自身を含む): 39079656

約数和(自身を除く): 17451380

約数列:

[1, 2, 4, 37, 74, 148, 317, 461, 634, 922, 1268, 1844, 11729, 17057, 23458, 34114, 46916, 68228, 146137, 292274, 584548, 5407069, 10814138, 21628276]

約数ペア:

[(1, 21628276), (2, 10814138), (4, 5407069), (37, 584548), (74, 292274), (148, 146137), (317, 68228), (461, 46916), (634, 34114), (922, 23458), (1268, 17057), (1844, 11729)]