18993910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{11239}}^1$

素因数の和:11272

約数の個数: 24

約数和(自身を含む): 37024560

約数和(自身を除く): 18030650

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 11239, 22478, 56195, 112390, 146107, 292214, 730535, 1461070, 1899391, 3798782, 9496955, 18993910]

約数ペア:

[(1, 18993910), (2, 9496955), (5, 3798782), (10, 1899391), (13, 1461070), (26, 730535), (65, 292214), (130, 146107), (169, 112390), (338, 56195), (845, 22478), (1690, 11239)]