391440721

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{5839}}^1$

素因数の和:6064

約数の個数: 16

約数和(自身を含む): 457669120

約数和(自身を除く): 66228399

約数列:

[1, 7, 61, 157, 427, 1099, 5839, 9577, 40873, 67039, 356179, 916723, 2493253, 6417061, 55920103, 391440721]

約数ペア:

[(1, 391440721), (7, 55920103), (61, 6417061), (157, 2493253), (427, 916723), (1099, 356179), (5839, 67039), (9577, 40873)]