21907166799

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1\times {\mathrm{1319}}^1$

素因数の和:1740

約数の個数: 64

約数和(自身を含む): 35254517760

約数和(自身を除く): 13347350961

約数列:

[1, 3, 7, 21, 23, 69, 137, 161, 251, 411, 483, 753, 959, 1319, 1757, 2877, 3151, 3957, 5271, 5773, 9233, 9453, 17319, 22057, 27699, 30337, 34387, 40411, 66171, 91011, 103161, 121233, 180703, 212359, 240709, 331069, 542109, 637077, 722127, 790901, 993207, 1264921, 2317483, 2372703, 3794763, 4156169, 5536307, 6952449, 7614587, 12468507, 16608921, 22843761, 29093183, 45356453, 53302109, 87279549, 136069359, 159906327, 317495171, 952485513, 1043198419, 3129595257, 7302388933, 21907166799]

約数ペア:

[(1, 21907166799), (3, 7302388933), (7, 3129595257), (21, 1043198419), (23, 952485513), (69, 317495171), (137, 159906327), (161, 136069359), (251, 87279549), (411, 53302109), (483, 45356453), (753, 29093183), (959, 22843761), (1319, 16608921), (1757, 12468507), (2877, 7614587), (3151, 6952449), (3957, 5536307), (5271, 4156169), (5773, 3794763), (9233, 2372703), (9453, 2317483), (17319, 1264921), (22057, 993207), (27699, 790901), (30337, 722127), (34387, 637077), (40411, 542109), (66171, 331069), (91011, 240709), (103161, 212359), (121233, 180703)]