21819856

素因数分解:

$2^4\times {\mathrm{313}}^1\times {\mathrm{4357}}^1$

素因数の和:4678

約数の個数: 20

約数和(自身を含む): 42420772

約数和(自身を除く): 20600916

約数列:

[1, 2, 4, 8, 16, 313, 626, 1252, 2504, 4357, 5008, 8714, 17428, 34856, 69712, 1363741, 2727482, 5454964, 10909928, 21819856]

約数ペア:

[(1, 21819856), (2, 10909928), (4, 5454964), (8, 2727482), (16, 1363741), (313, 69712), (626, 34856), (1252, 17428), (2504, 8714), (4357, 5008)]