21000724821

素因数分解:

$3^3\times {\mathrm{269}}^1\times {\mathrm{677}}^1\times {\mathrm{4271}}^1$

素因数の和:5226

約数の個数: 32

約数和(自身を含む): 31281292800

約数和(自身を除く): 10280567979

約数列:

[1, 3, 9, 27, 269, 677, 807, 2031, 2421, 4271, 6093, 7263, 12813, 18279, 38439, 115317, 182113, 546339, 1148899, 1639017, 2891467, 3446697, 4917051, 8674401, 10340091, 26023203, 31020273, 78069609, 777804623, 2333413869, 7000241607, 21000724821]

約数ペア:

[(1, 21000724821), (3, 7000241607), (9, 2333413869), (27, 777804623), (269, 78069609), (677, 31020273), (807, 26023203), (2031, 10340091), (2421, 8674401), (4271, 4917051), (6093, 3446697), (7263, 2891467), (12813, 1639017), (18279, 1148899), (38439, 546339), (115317, 182113)]