15721496987

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{1733}}^1\times {\mathrm{30139}}^1$

素因数の和:31922

約数の個数: 16

約数和(自身を含む): 18396491520

約数和(自身を除く): 2674994533

約数列:

[1, 7, 43, 301, 1733, 12131, 30139, 74519, 210973, 521633, 1295977, 9071839, 52230887, 365616209, 2245928141, 15721496987]

約数ペア:

[(1, 15721496987), (7, 2245928141), (43, 365616209), (301, 52230887), (1733, 9071839), (12131, 1295977), (30139, 521633), (74519, 210973)]