56256921

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{12577}}^1$

素因数の和:12661

約数の個数: 24

約数和(自身を含む): 94184064

約数和(自身を除く): 37927143

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 12577, 37731, 88039, 113193, 264117, 792351, 892967, 2678901, 6250769, 8036703, 18752307, 56256921]

約数ペア:

[(1, 56256921), (3, 18752307), (7, 8036703), (9, 6250769), (21, 2678901), (63, 892967), (71, 792351), (213, 264117), (497, 113193), (639, 88039), (1491, 37731), (4473, 12577)]