19860386

素因数分解:

$2^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1$

素因数の和:184

約数の個数: 64

約数和(自身を含む): 39916800

約数和(自身を除く): 20056414

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 49, 91, 98, 119, 131, 182, 221, 238, 262, 343, 442, 637, 686, 833, 917, 1274, 1547, 1666, 1703, 1834, 2227, 3094, 3406, 4454, 4459, 5831, 6419, 8918, 10829, 11662, 11921, 12838, 15589, 21658, 23842, 28951, 31178, 44933, 57902, 75803, 83447, 89866, 109123, 151606, 166894, 202657, 218246, 405314, 584129, 763861, 1168258, 1418599, 1527722, 2837198, 9930193, 19860386]

約数ペア:

[(1, 19860386), (2, 9930193), (7, 2837198), (13, 1527722), (14, 1418599), (17, 1168258), (26, 763861), (34, 584129), (49, 405314), (91, 218246), (98, 202657), (119, 166894), (131, 151606), (182, 109123), (221, 89866), (238, 83447), (262, 75803), (343, 57902), (442, 44933), (637, 31178), (686, 28951), (833, 23842), (917, 21658), (1274, 15589), (1547, 12838), (1666, 11921), (1703, 11662), (1834, 10829), (2227, 8918), (3094, 6419), (3406, 5831), (4454, 4459)]