20949016

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{2357}}^1$

素因数の和:2475

約数の個数: 32

約数和(自身を含む): 43292880

約数和(自身を除く): 22343864

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 101, 202, 404, 808, 1111, 2222, 2357, 4444, 4714, 8888, 9428, 18856, 25927, 51854, 103708, 207416, 238057, 476114, 952228, 1904456, 2618627, 5237254, 10474508, 20949016]

約数ペア:

[(1, 20949016), (2, 10474508), (4, 5237254), (8, 2618627), (11, 1904456), (22, 952228), (44, 476114), (88, 238057), (101, 207416), (202, 103708), (404, 51854), (808, 25927), (1111, 18856), (2222, 9428), (2357, 8888), (4444, 4714)]