20917684

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{9923}}^1$

素因数の和:9975

約数の個数: 24

約数和(自身を含む): 40013568

約数和(自身を除く): 19095884

約数列:

[1, 2, 4, 17, 31, 34, 62, 68, 124, 527, 1054, 2108, 9923, 19846, 39692, 168691, 307613, 337382, 615226, 674764, 1230452, 5229421, 10458842, 20917684]

約数ペア:

[(1, 20917684), (2, 10458842), (4, 5229421), (17, 1230452), (31, 674764), (34, 615226), (62, 337382), (68, 307613), (124, 168691), (527, 39692), (1054, 19846), (2108, 9923)]