1821601808

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{8757701}}^1$

素因数の和:8757722

約数の個数: 20

約数和(自身を含む): 3800842668

約数和(自身を除く): 1979240860

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 8757701, 17515402, 35030804, 70061608, 113850113, 140123216, 227700226, 455400452, 910800904, 1821601808]

約数ペア:

[(1, 1821601808), (2, 910800904), (4, 455400452), (8, 227700226), (13, 140123216), (16, 113850113), (26, 70061608), (52, 35030804), (104, 17515402), (208, 8757701)]