21000659370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{700021979}}^1$

素因数の和:700021989

約数の個数: 16

約数和(自身を含む): 50401582560

約数和(自身を除く): 29400923190

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 700021979, 1400043958, 2100065937, 3500109895, 4200131874, 7000219790, 10500329685, 21000659370]

約数ペア:

[(1, 21000659370), (2, 10500329685), (3, 7000219790), (5, 4200131874), (6, 3500109895), (10, 2100065937), (15, 1400043958), (30, 700021979)]