27991015

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{1301}}^1$

素因数の和:1650

約数の個数: 16

約数和(自身を含む): 36310176

約数和(自身を除く): 8319161

約数列:

[1, 5, 13, 65, 331, 1301, 1655, 4303, 6505, 16913, 21515, 84565, 430631, 2153155, 5598203, 27991015]

約数ペア:

[(1, 27991015), (5, 5598203), (13, 2153155), (65, 430631), (331, 84565), (1301, 21515), (1655, 16913), (4303, 6505)]