20573908

素因数分解:

$2^2\times {\mathrm{157}}^1\times {\mathrm{181}}^2$

素因数の和:523

約数の個数: 18

約数和(自身を含む): 36434958

約数和(自身を除く): 15861050

約数列:

[1, 2, 4, 157, 181, 314, 362, 628, 724, 28417, 32761, 56834, 65522, 113668, 131044, 5143477, 10286954, 20573908]

約数ペア:

[(1, 20573908), (2, 10286954), (4, 5143477), (157, 131044), (181, 113668), (314, 65522), (362, 56834), (628, 32761), (724, 28417)]