21000751980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26924041}}^1$

素因数の和:26924066

約数の個数: 48

約数和(自身を含む): 63325346784

約数和(自身を除く): 42324594804

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 26924041, 53848082, 80772123, 107696164, 134620205, 161544246, 269240410, 323088492, 350012533, 403860615, 538480820, 700025066, 807721230, 1050037599, 1400050132, 1615442460, 1750062665, 2100075198, 3500125330, 4200150396, 5250187995, 7000250660, 10500375990, 21000751980]

約数ペア:

[(1, 21000751980), (2, 10500375990), (3, 7000250660), (4, 5250187995), (5, 4200150396), (6, 3500125330), (10, 2100075198), (12, 1750062665), (13, 1615442460), (15, 1400050132), (20, 1050037599), (26, 807721230), (30, 700025066), (39, 538480820), (52, 403860615), (60, 350012533), (65, 323088492), (78, 269240410), (130, 161544246), (156, 134620205), (195, 107696164), (260, 80772123), (390, 53848082), (780, 26924041)]