398945043

素因数分解:

$3^2\times 7^1\times {\mathrm{487}}^1\times {\mathrm{13003}}^1$

素因数の和:13503

約数の個数: 24

約数和(自身を含む): 659979008

約数和(自身を除く): 261033965

約数列:

[1, 3, 7, 9, 21, 63, 487, 1461, 3409, 4383, 10227, 13003, 30681, 39009, 91021, 117027, 273063, 819189, 6332461, 18997383, 44327227, 56992149, 132981681, 398945043]

約数ペア:

[(1, 398945043), (3, 132981681), (7, 56992149), (9, 44327227), (21, 18997383), (63, 6332461), (487, 819189), (1461, 273063), (3409, 117027), (4383, 91021), (10227, 39009), (13003, 30681)]