21329538839

素因数分解:

$7^2\times {\mathrm{229}}^1\times {\mathrm{571}}^1\times {\mathrm{3329}}^1$

素因数の和:4143

約数の個数: 24

約数和(自身を含む): 24971403600

約数和(自身を除く): 3641864761

約数列:

[1, 7, 49, 229, 571, 1603, 3329, 3997, 11221, 23303, 27979, 130759, 163121, 762341, 915313, 1900859, 5336387, 6407191, 13306013, 37354709, 93142091, 435296711, 3047076977, 21329538839]

約数ペア:

[(1, 21329538839), (7, 3047076977), (49, 435296711), (229, 93142091), (571, 37354709), (1603, 13306013), (3329, 6407191), (3997, 5336387), (11221, 1900859), (23303, 915313), (27979, 762341), (130759, 163121)]