20621272

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{21661}}^1$

素因数の和:21691

約数の個数: 32

約数和(自身を含む): 46789920

約数和(自身を除く): 26168648

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 238, 476, 952, 21661, 43322, 86644, 151627, 173288, 303254, 368237, 606508, 736474, 1213016, 1472948, 2577659, 2945896, 5155318, 10310636, 20621272]

約数ペア:

[(1, 20621272), (2, 10310636), (4, 5155318), (7, 2945896), (8, 2577659), (14, 1472948), (17, 1213016), (28, 736474), (34, 606508), (56, 368237), (68, 303254), (119, 173288), (136, 151627), (238, 86644), (476, 43322), (952, 21661)]