213237981

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{557}}^1\times {\mathrm{1289}}^1$

素因数の和:1866

約数の個数: 32

約数和(自身を含む): 345513600

約数和(自身を除く): 132275619

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 557, 1289, 1671, 3867, 5013, 6127, 11601, 14179, 15039, 18381, 34803, 42537, 55143, 127611, 165429, 382833, 717973, 2153919, 6461757, 7897703, 19385271, 23693109, 71079327, 213237981]

約数ペア:

[(1, 213237981), (3, 71079327), (9, 23693109), (11, 19385271), (27, 7897703), (33, 6461757), (99, 2153919), (297, 717973), (557, 382833), (1289, 165429), (1671, 127611), (3867, 55143), (5013, 42537), (6127, 34803), (11601, 18381), (14179, 15039)]