15905721

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{1303}}^1$

素因数の和:1632

約数の個数: 16

約数和(自身を含む): 22929536

約数和(自身を除く): 7023815

約数列:

[1, 3, 13, 39, 313, 939, 1303, 3909, 4069, 12207, 16939, 50817, 407839, 1223517, 5301907, 15905721]

約数ペア:

[(1, 15905721), (3, 5301907), (13, 1223517), (39, 407839), (313, 50817), (939, 16939), (1303, 12207), (3909, 4069)]