21046675

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2089}}^1$

素因数の和:2143

約数の個数: 24

約数和(自身を含む): 29025920

約数和(自身を除く): 7979245

約数列:

[1, 5, 13, 25, 31, 65, 155, 325, 403, 775, 2015, 2089, 10075, 10445, 27157, 52225, 64759, 135785, 323795, 678925, 841867, 1618975, 4209335, 21046675]

約数ペア:

[(1, 21046675), (5, 4209335), (13, 1618975), (25, 841867), (31, 678925), (65, 323795), (155, 135785), (325, 64759), (403, 52225), (775, 27157), (2015, 10445), (2089, 10075)]