18571888

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{68279}}^1$

素因数の和:68304

約数の個数: 20

約数和(自身を含む): 38100240

約数和(自身を除く): 19528352

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 68279, 136558, 273116, 546232, 1092464, 1160743, 2321486, 4642972, 9285944, 18571888]

約数ペア:

[(1, 18571888), (2, 9285944), (4, 4642972), (8, 2321486), (16, 1160743), (17, 1092464), (34, 546232), (68, 273116), (136, 136558), (272, 68279)]