20782818

素因数分解:

$2^1\times 3^5\times 7^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:214

約数の個数: 96

約数和(自身を含む): 55036800

約数和(自身を除く): 34253982

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 41, 42, 54, 63, 81, 82, 123, 126, 149, 162, 189, 243, 246, 287, 298, 369, 378, 447, 486, 567, 574, 738, 861, 894, 1043, 1107, 1134, 1341, 1701, 1722, 2086, 2214, 2583, 2682, 3129, 3321, 3402, 4023, 5166, 6109, 6258, 6642, 7749, 8046, 9387, 9963, 12069, 12218, 15498, 18327, 18774, 19926, 23247, 24138, 28161, 36207, 36654, 42763, 46494, 54981, 56322, 69741, 72414, 84483, 85526, 109962, 128289, 139482, 164943, 168966, 253449, 256578, 329886, 384867, 494829, 506898, 769734, 989658, 1154601, 1484487, 2309202, 2968974, 3463803, 6927606, 10391409, 20782818]

約数ペア:

[(1, 20782818), (2, 10391409), (3, 6927606), (6, 3463803), (7, 2968974), (9, 2309202), (14, 1484487), (18, 1154601), (21, 989658), (27, 769734), (41, 506898), (42, 494829), (54, 384867), (63, 329886), (81, 256578), (82, 253449), (123, 168966), (126, 164943), (149, 139482), (162, 128289), (189, 109962), (243, 85526), (246, 84483), (287, 72414), (298, 69741), (369, 56322), (378, 54981), (447, 46494), (486, 42763), (567, 36654), (574, 36207), (738, 28161), (861, 24138), (894, 23247), (1043, 19926), (1107, 18774), (1134, 18327), (1341, 15498), (1701, 12218), (1722, 12069), (2086, 9963), (2214, 9387), (2583, 8046), (2682, 7749), (3129, 6642), (3321, 6258), (3402, 6109), (4023, 5166)]