21119307

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{8101}}^1$

素因数の和:8194

約数の個数: 16

約数和(自身を含む): 31111680

約数和(自身を除く): 9992373

約数列:

[1, 3, 11, 33, 79, 237, 869, 2607, 8101, 24303, 89111, 267333, 639979, 1919937, 7039769, 21119307]

約数ペア:

[(1, 21119307), (3, 7039769), (11, 1919937), (33, 639979), (79, 267333), (237, 89111), (869, 24303), (2607, 8101)]