18018910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19801}}^1$

素因数の和:19828

約数の個数: 32

約数和(自身を含む): 39920832

約数和(自身を除く): 21901922

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 19801, 39602, 99005, 138607, 198010, 257413, 277214, 514826, 693035, 1287065, 1386070, 1801891, 2574130, 3603782, 9009455, 18018910]

約数ペア:

[(1, 18018910), (2, 9009455), (5, 3603782), (7, 2574130), (10, 1801891), (13, 1386070), (14, 1287065), (26, 693035), (35, 514826), (65, 277214), (70, 257413), (91, 198010), (130, 138607), (182, 99005), (455, 39602), (910, 19801)]