31481613

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2593}}^1$

素因数の和:2689

約数の個数: 24

約数和(自身を含む): 48559680

約数和(自身を除く): 17078067

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 639, 1349, 2593, 4047, 7779, 12141, 23337, 49267, 147801, 184103, 443403, 552309, 1656927, 3497957, 10493871, 31481613]

約数ペア:

[(1, 31481613), (3, 10493871), (9, 3497957), (19, 1656927), (57, 552309), (71, 443403), (171, 184103), (213, 147801), (639, 49267), (1349, 23337), (2593, 12141), (4047, 7779)]