18928468

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{2657}}^1$

素因数の和:2811

約数の個数: 24

約数和(自身を含む): 35946792

約数和(自身を除く): 17018324

約数列:

[1, 2, 4, 13, 26, 52, 137, 274, 548, 1781, 2657, 3562, 5314, 7124, 10628, 34541, 69082, 138164, 364009, 728018, 1456036, 4732117, 9464234, 18928468]

約数ペア:

[(1, 18928468), (2, 9464234), (4, 4732117), (13, 1456036), (26, 728018), (52, 364009), (137, 138164), (274, 69082), (548, 34541), (1781, 10628), (2657, 7124), (3562, 5314)]