21411873

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{2111}}^1$

素因数の和:2154

約数の個数: 36

約数和(自身を含む): 37559808

約数和(自身を除く): 16147935

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 147, 161, 207, 441, 483, 1127, 1449, 2111, 3381, 6333, 10143, 14777, 18999, 44331, 48553, 103439, 132993, 145659, 310317, 339871, 436977, 930951, 1019613, 2379097, 3058839, 7137291, 21411873]

約数ペア:

[(1, 21411873), (3, 7137291), (7, 3058839), (9, 2379097), (21, 1019613), (23, 930951), (49, 436977), (63, 339871), (69, 310317), (147, 145659), (161, 132993), (207, 103439), (441, 48553), (483, 44331), (1127, 18999), (1449, 14777), (2111, 10143), (3381, 6333)]