20809102671

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{72229}}^1$

素因数の和:72528

約数の個数: 48

約数和(自身を含む): 36507931200

約数和(自身を除く): 15698828529

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 269, 357, 807, 1071, 1883, 2421, 4573, 5649, 13719, 16947, 32011, 41157, 72229, 96033, 216687, 288099, 505603, 650061, 1227893, 1516809, 3683679, 4550427, 8595251, 11051037, 19429601, 25785753, 58288803, 77357259, 136007207, 174866409, 330303217, 408021621, 990909651, 1224064863, 2312122519, 2972728953, 6936367557, 20809102671]

約数ペア:

[(1, 20809102671), (3, 6936367557), (7, 2972728953), (9, 2312122519), (17, 1224064863), (21, 990909651), (51, 408021621), (63, 330303217), (119, 174866409), (153, 136007207), (269, 77357259), (357, 58288803), (807, 25785753), (1071, 19429601), (1883, 11051037), (2421, 8595251), (4573, 4550427), (5649, 3683679), (13719, 1516809), (16947, 1227893), (32011, 650061), (41157, 505603), (72229, 288099), (96033, 216687)]