21431115

素因数分解:

$3^3\times 5^1\times {\mathrm{158749}}^1$

素因数の和:158763

約数の個数: 16

約数和(自身を含む): 38100000

約数和(自身を除く): 16668885

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 158749, 476247, 793745, 1428741, 2381235, 4286223, 7143705, 21431115]

約数ペア:

[(1, 21431115), (3, 7143705), (5, 4286223), (9, 2381235), (15, 1428741), (27, 793745), (45, 476247), (135, 158749)]