20864746

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{3023}}^1$

素因数の和:3078

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 18326294

約数列:

[1, 2, 7, 14, 17, 29, 34, 58, 119, 203, 238, 406, 493, 986, 3023, 3451, 6046, 6902, 21161, 42322, 51391, 87667, 102782, 175334, 359737, 613669, 719474, 1227338, 1490339, 2980678, 10432373, 20864746]

約数ペア:

[(1, 20864746), (2, 10432373), (7, 2980678), (14, 1490339), (17, 1227338), (29, 719474), (34, 613669), (58, 359737), (119, 175334), (203, 102782), (238, 87667), (406, 51391), (493, 42322), (986, 21161), (3023, 6902), (3451, 6046)]