21203798

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{12517}}^1$

素因数の和:12548

約数の個数: 24

約数和(自身を含む): 39957456

約数和(自身を除く): 18753658

約数列:

[1, 2, 7, 11, 14, 22, 77, 121, 154, 242, 847, 1694, 12517, 25034, 87619, 137687, 175238, 275374, 963809, 1514557, 1927618, 3029114, 10601899, 21203798]

約数ペア:

[(1, 21203798), (2, 10601899), (7, 3029114), (11, 1927618), (14, 1514557), (22, 963809), (77, 275374), (121, 175238), (154, 137687), (242, 87619), (847, 25034), (1694, 12517)]