21603288

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{128591}}^1$

素因数の和:128607

約数の個数: 32

約数和(自身を含む): 61724160

約数和(自身を除く): 40120872

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 128591, 257182, 385773, 514364, 771546, 900137, 1028728, 1543092, 1800274, 2700411, 3086184, 3600548, 5400822, 7201096, 10801644, 21603288]

約数ペア:

[(1, 21603288), (2, 10801644), (3, 7201096), (4, 5400822), (6, 3600548), (7, 3086184), (8, 2700411), (12, 1800274), (14, 1543092), (21, 1028728), (24, 900137), (28, 771546), (42, 514364), (56, 385773), (84, 257182), (168, 128591)]