19664656

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{111731}}^1$

素因数の和:111750

約数の個数: 20

約数和(自身を含む): 41564304

約数和(自身を除く): 21899648

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 111731, 223462, 446924, 893848, 1229041, 1787696, 2458082, 4916164, 9832328, 19664656]

約数ペア:

[(1, 19664656), (2, 9832328), (4, 4916164), (8, 2458082), (11, 1787696), (16, 1229041), (22, 893848), (44, 446924), (88, 223462), (176, 111731)]