21000638940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{350010649}}^1$

素因数の和:350010661

約数の個数: 24

約数和(自身を含む): 58801789200

約数和(自身を除く): 37801150260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 350010649, 700021298, 1050031947, 1400042596, 1750053245, 2100063894, 3500106490, 4200127788, 5250159735, 7000212980, 10500319470, 21000638940]

約数ペア:

[(1, 21000638940), (2, 10500319470), (3, 7000212980), (4, 5250159735), (5, 4200127788), (6, 3500106490), (10, 2100063894), (12, 1750053245), (15, 1400042596), (20, 1050031947), (30, 700021298), (60, 350010649)]