20409564

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{242971}}^1$

素因数の和:242985

約数の個数: 24

約数和(自身を含む): 54425728

約数和(自身を除く): 34016164

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 242971, 485942, 728913, 971884, 1457826, 1700797, 2915652, 3401594, 5102391, 6803188, 10204782, 20409564]

約数ペア:

[(1, 20409564), (2, 10204782), (3, 6803188), (4, 5102391), (6, 3401594), (7, 2915652), (12, 1700797), (14, 1457826), (21, 971884), (28, 728913), (42, 485942), (84, 242971)]