21879428

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{1747}}^1$

素因数の和:1883

約数の個数: 24

約数和(自身を含む): 39938304

約数和(自身を除く): 18058876

約数列:

[1, 2, 4, 31, 62, 101, 124, 202, 404, 1747, 3131, 3494, 6262, 6988, 12524, 54157, 108314, 176447, 216628, 352894, 705788, 5469857, 10939714, 21879428]

約数ペア:

[(1, 21879428), (2, 10939714), (4, 5469857), (31, 705788), (62, 352894), (101, 216628), (124, 176447), (202, 108314), (404, 54157), (1747, 12524), (3131, 6988), (3494, 6262)]