39778221

素因数分解:

$3^1\times 7^1\times {\mathrm{569}}^1\times {\mathrm{3329}}^1$

素因数の和:3908

約数の個数: 16

約数和(自身を含む): 60739200

約数和(自身を除く): 20960979

約数列:

[1, 3, 7, 21, 569, 1707, 3329, 3983, 9987, 11949, 23303, 69909, 1894201, 5682603, 13259407, 39778221]

約数ペア:

[(1, 39778221), (3, 13259407), (7, 5682603), (21, 1894201), (569, 69909), (1707, 23303), (3329, 11949), (3983, 9987)]