18643696

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{68543}}^1$

素因数の和:68568

約数の個数: 20

約数和(自身を含む): 38247552

約数和(自身を除く): 19603856

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 68543, 137086, 274172, 548344, 1096688, 1165231, 2330462, 4660924, 9321848, 18643696]

約数ペア:

[(1, 18643696), (2, 9321848), (4, 4660924), (8, 2330462), (16, 1165231), (17, 1096688), (34, 548344), (68, 274172), (136, 137086), (272, 68543)]