21636321

素因数分解:

$3^1\times 7^1\times {\mathrm{101}}^3$

素因数の和:313

約数の個数: 16

約数和(自身を含む): 33299328

約数和(自身を除く): 11663007

約数列:

[1, 3, 7, 21, 101, 303, 707, 2121, 10201, 30603, 71407, 214221, 1030301, 3090903, 7212107, 21636321]

約数ペア:

[(1, 21636321), (3, 7212107), (7, 3090903), (21, 1030301), (101, 214221), (303, 71407), (707, 30603), (2121, 10201)]