13820885

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^3\times {\mathrm{31}}^1$

素因数の和:106

約数の個数: 32

約数和(自身を含む): 19461120

約数和(自身を除く): 5640235

約数列:

[1, 5, 13, 19, 31, 65, 95, 155, 247, 361, 403, 589, 1235, 1805, 2015, 2945, 4693, 6859, 7657, 11191, 23465, 34295, 38285, 55955, 89167, 145483, 212629, 445835, 727415, 1063145, 2764177, 13820885]

約数ペア:

[(1, 13820885), (5, 2764177), (13, 1063145), (19, 727415), (31, 445835), (65, 212629), (95, 145483), (155, 89167), (247, 55955), (361, 38285), (403, 34295), (589, 23465), (1235, 11191), (1805, 7657), (2015, 6859), (2945, 4693)]