216907497

素因数分解:

$3^3\times {\mathrm{557}}^1\times {\mathrm{14423}}^1$

素因数の和:14989

約数の個数: 16

約数和(自身を含む): 321943680

約数和(自身を除く): 105036183

約数列:

[1, 3, 9, 27, 557, 1671, 5013, 14423, 15039, 43269, 129807, 389421, 8033611, 24100833, 72302499, 216907497]

約数ペア:

[(1, 216907497), (3, 72302499), (9, 24100833), (27, 8033611), (557, 389421), (1671, 129807), (5013, 43269), (14423, 15039)]