21023639

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{2243}}^1$

素因数の和:2366

約数の個数: 16

約数和(自身を含む): 26138112

約数和(自身を除く): 5114473

約数列:

[1, 7, 13, 91, 103, 721, 1339, 2243, 9373, 15701, 29159, 204113, 231029, 1617203, 3003377, 21023639]

約数ペア:

[(1, 21023639), (7, 3003377), (13, 1617203), (91, 231029), (103, 204113), (721, 29159), (1339, 15701), (2243, 9373)]