20341209

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{263}}^1$

素因数の和:429

約数の個数: 32

約数和(自身を含む): 32440320

約数和(自身を除く): 12099111

約数列:

[1, 3, 7, 21, 29, 87, 127, 203, 263, 381, 609, 789, 889, 1841, 2667, 3683, 5523, 7627, 11049, 22881, 25781, 33401, 53389, 77343, 100203, 160167, 233807, 701421, 968629, 2905887, 6780403, 20341209]

約数ペア:

[(1, 20341209), (3, 6780403), (7, 2905887), (21, 968629), (29, 701421), (87, 233807), (127, 160167), (203, 100203), (263, 77343), (381, 53389), (609, 33401), (789, 25781), (889, 22881), (1841, 11049), (2667, 7627), (3683, 5523)]