20805267

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{269}}^1$

素因数の和:435

約数の個数: 32

約数和(自身を含む): 33177600

約数和(自身を除く): 12372333

約数列:

[1, 3, 7, 21, 29, 87, 127, 203, 269, 381, 609, 807, 889, 1883, 2667, 3683, 5649, 7801, 11049, 23403, 25781, 34163, 54607, 77343, 102489, 163821, 239141, 717423, 990727, 2972181, 6935089, 20805267]

約数ペア:

[(1, 20805267), (3, 6935089), (7, 2972181), (21, 990727), (29, 717423), (87, 239141), (127, 163821), (203, 102489), (269, 77343), (381, 54607), (609, 34163), (807, 25781), (889, 23403), (1883, 11049), (2667, 7801), (3683, 5649)]