20642972

素因数分解:

$2^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{4523}}^1$

素因数の和:4697

約数の個数: 24

約数和(自身を含む): 41548416

約数和(自身を除く): 20905444

約数列:

[1, 2, 4, 7, 14, 28, 163, 326, 652, 1141, 2282, 4523, 4564, 9046, 18092, 31661, 63322, 126644, 737249, 1474498, 2948996, 5160743, 10321486, 20642972]

約数ペア:

[(1, 20642972), (2, 10321486), (4, 5160743), (7, 2948996), (14, 1474498), (28, 737249), (163, 126644), (326, 63322), (652, 31661), (1141, 18092), (2282, 9046), (4523, 4564)]