20961548

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{1319}}^1$

素因数の和:1489

約数の個数: 24

約数和(自身を含む): 38253600

約数和(自身を除く): 17292052

約数列:

[1, 2, 4, 29, 58, 116, 137, 274, 548, 1319, 2638, 3973, 5276, 7946, 15892, 38251, 76502, 153004, 180703, 361406, 722812, 5240387, 10480774, 20961548]

約数ペア:

[(1, 20961548), (2, 10480774), (4, 5240387), (29, 722812), (58, 361406), (116, 180703), (137, 153004), (274, 76502), (548, 38251), (1319, 15892), (2638, 7946), (3973, 5276)]