21751737

素因数分解:

$3^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{2027}}^1$

素因数の和:2117

約数の個数: 24

約数和(自身を含む): 34216416

約数和(自身を除く): 12464679

約数列:

[1, 3, 7, 21, 49, 73, 147, 219, 511, 1533, 2027, 3577, 6081, 10731, 14189, 42567, 99323, 147971, 297969, 443913, 1035797, 3107391, 7250579, 21751737]

約数ペア:

[(1, 21751737), (3, 7250579), (7, 3107391), (21, 1035797), (49, 443913), (73, 297969), (147, 147971), (219, 99323), (511, 42567), (1533, 14189), (2027, 10731), (3577, 6081)]