12971890

素因数分解:

$2^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{3919}}^1$

素因数の和:4257

約数の個数: 16

約数和(自身を含む): 23425920

約数和(自身を除く): 10454030

約数列:

[1, 2, 5, 10, 331, 662, 1655, 3310, 3919, 7838, 19595, 39190, 1297189, 2594378, 6485945, 12971890]

約数ペア:

[(1, 12971890), (2, 6485945), (5, 2594378), (10, 1297189), (331, 39190), (662, 19595), (1655, 7838), (3310, 3919)]