20438968

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{8009}}^1$

素因数の和:8055

約数の個数: 32

約数和(自身を含む): 43254000

約数和(自身を除く): 22815032

約数列:

[1, 2, 4, 8, 11, 22, 29, 44, 58, 88, 116, 232, 319, 638, 1276, 2552, 8009, 16018, 32036, 64072, 88099, 176198, 232261, 352396, 464522, 704792, 929044, 1858088, 2554871, 5109742, 10219484, 20438968]

約数ペア:

[(1, 20438968), (2, 10219484), (4, 5109742), (8, 2554871), (11, 1858088), (22, 929044), (29, 704792), (44, 464522), (58, 352396), (88, 232261), (116, 176198), (232, 88099), (319, 64072), (638, 32036), (1276, 16018), (2552, 8009)]