21323211

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2111}}^1$

素因数の和:2171

約数の個数: 32

約数和(自身を含む): 35954688

約数和(自身を除く): 14631477

約数列:

[1, 3, 7, 13, 21, 37, 39, 91, 111, 259, 273, 481, 777, 1443, 2111, 3367, 6333, 10101, 14777, 27443, 44331, 78107, 82329, 192101, 234321, 546749, 576303, 1015391, 1640247, 3046173, 7107737, 21323211]

約数ペア:

[(1, 21323211), (3, 7107737), (7, 3046173), (13, 1640247), (21, 1015391), (37, 576303), (39, 546749), (91, 234321), (111, 192101), (259, 82329), (273, 78107), (481, 44331), (777, 27443), (1443, 14777), (2111, 10101), (3367, 6333)]