19916908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{9631}}^1$

素因数の和:9693

約数の個数: 24

約数和(自身を含む): 38836224

約数和(自身を除く): 18919316

約数列:

[1, 2, 4, 11, 22, 44, 47, 94, 188, 517, 1034, 2068, 9631, 19262, 38524, 105941, 211882, 423764, 452657, 905314, 1810628, 4979227, 9958454, 19916908]

約数ペア:

[(1, 19916908), (2, 9958454), (4, 4979227), (11, 1810628), (22, 905314), (44, 452657), (47, 423764), (94, 211882), (188, 105941), (517, 38524), (1034, 19262), (2068, 9631)]