18701410

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20551}}^1$

素因数の和:20578

約数の個数: 32

約数和(自身を含む): 41432832

約数和(自身を除く): 22731422

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 20551, 41102, 102755, 143857, 205510, 267163, 287714, 534326, 719285, 1335815, 1438570, 1870141, 2671630, 3740282, 9350705, 18701410]

約数ペア:

[(1, 18701410), (2, 9350705), (5, 3740282), (7, 2671630), (10, 1870141), (13, 1438570), (14, 1335815), (26, 719285), (35, 534326), (65, 287714), (70, 267163), (91, 205510), (130, 143857), (182, 102755), (455, 41102), (910, 20551)]