21085130

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1861}}^1$

素因数の和:1982

約数の個数: 32

約数和(自身を含む): 41827968

約数和(自身を除く): 20742838

約数列:

[1, 2, 5, 10, 11, 22, 55, 103, 110, 206, 515, 1030, 1133, 1861, 2266, 3722, 5665, 9305, 11330, 18610, 20471, 40942, 102355, 191683, 204710, 383366, 958415, 1916830, 2108513, 4217026, 10542565, 21085130]

約数ペア:

[(1, 21085130), (2, 10542565), (5, 4217026), (10, 2108513), (11, 1916830), (22, 958415), (55, 383366), (103, 204710), (110, 191683), (206, 102355), (515, 40942), (1030, 20471), (1133, 18610), (1861, 11330), (2266, 9305), (3722, 5665)]