216221205

素因数分解:

$3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{349}}^1\times {\mathrm{401}}^1$

素因数の和:861

約数の個数: 32

約数和(自身を含む): 351187200

約数和(自身を除く): 134965995

約数列:

[1, 3, 5, 15, 103, 309, 349, 401, 515, 1047, 1203, 1545, 1745, 2005, 5235, 6015, 35947, 41303, 107841, 123909, 139949, 179735, 206515, 419847, 539205, 619545, 699745, 2099235, 14414747, 43244241, 72073735, 216221205]

約数ペア:

[(1, 216221205), (3, 72073735), (5, 43244241), (15, 14414747), (103, 2099235), (309, 699745), (349, 619545), (401, 539205), (515, 419847), (1047, 206515), (1203, 179735), (1545, 139949), (1745, 123909), (2005, 107841), (5235, 41303), (6015, 35947)]