21747531

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{1607}}^1$

素因数の和:1970

約数の個数: 16

約数和(自身を含む): 31336704

約数和(自身を除く): 9589173

約数列:

[1, 3, 13, 39, 347, 1041, 1607, 4511, 4821, 13533, 20891, 62673, 557629, 1672887, 7249177, 21747531]

約数ペア:

[(1, 21747531), (3, 7249177), (13, 1672887), (39, 557629), (347, 62673), (1041, 20891), (1607, 13533), (4511, 4821)]