213447285

素因数分解:

$3^3\times 5^1\times {\mathrm{1581091}}^1$

素因数の和:1581105

約数の個数: 16

約数和(自身を含む): 379462080

約数和(自身を除く): 166014795

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1581091, 4743273, 7905455, 14229819, 23716365, 42689457, 71149095, 213447285]

約数ペア:

[(1, 213447285), (3, 71149095), (5, 42689457), (9, 23716365), (15, 14229819), (27, 7905455), (45, 4743273), (135, 1581091)]