21286677

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{5323}}^1$

素因数の和:5400

約数の個数: 16

約数和(自身を含む): 29984768

約数和(自身を除く): 8698091

約数列:

[1, 3, 31, 43, 93, 129, 1333, 3999, 5323, 15969, 165013, 228889, 495039, 686667, 7095559, 21286677]

約数ペア:

[(1, 21286677), (3, 7095559), (31, 686667), (43, 495039), (93, 228889), (129, 165013), (1333, 15969), (3999, 5323)]