19904272

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:331

約数の個数: 40

約数和(自身を含む): 39651480

約数和(自身を除く): 19747208

約数列:

[1, 2, 4, 8, 16, 101, 109, 113, 202, 218, 226, 404, 436, 452, 808, 872, 904, 1616, 1744, 1808, 11009, 11413, 12317, 22018, 22826, 24634, 44036, 45652, 49268, 88072, 91304, 98536, 176144, 182608, 197072, 1244017, 2488034, 4976068, 9952136, 19904272]

約数ペア:

[(1, 19904272), (2, 9952136), (4, 4976068), (8, 2488034), (16, 1244017), (101, 197072), (109, 182608), (113, 176144), (202, 98536), (218, 91304), (226, 88072), (404, 49268), (436, 45652), (452, 44036), (808, 24634), (872, 22826), (904, 22018), (1616, 12317), (1744, 11413), (1808, 11009)]