20159428

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{683}}^1$

素因数の和:891

約数の個数: 24

約数和(自身を含む): 36312192

約数和(自身を除く): 16152764

約数列:

[1, 2, 4, 47, 94, 157, 188, 314, 628, 683, 1366, 2732, 7379, 14758, 29516, 32101, 64202, 107231, 128404, 214462, 428924, 5039857, 10079714, 20159428]

約数ペア:

[(1, 20159428), (2, 10079714), (4, 5039857), (47, 428924), (94, 214462), (157, 128404), (188, 107231), (314, 64202), (628, 32101), (683, 29516), (1366, 14758), (2732, 7379)]