21786540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{659}}^1$

素因数の和:719

約数の個数: 96

約数和(自身を含む): 66528000

約数和(自身を除く): 44741460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 29, 30, 38, 57, 58, 60, 76, 87, 95, 114, 116, 145, 174, 190, 228, 285, 290, 348, 380, 435, 551, 570, 580, 659, 870, 1102, 1140, 1318, 1653, 1740, 1977, 2204, 2636, 2755, 3295, 3306, 3954, 5510, 6590, 6612, 7908, 8265, 9885, 11020, 12521, 13180, 16530, 19111, 19770, 25042, 33060, 37563, 38222, 39540, 50084, 57333, 62605, 75126, 76444, 95555, 114666, 125210, 150252, 187815, 191110, 229332, 250420, 286665, 363109, 375630, 382220, 573330, 726218, 751260, 1089327, 1146660, 1452436, 1815545, 2178654, 3631090, 4357308, 5446635, 7262180, 10893270, 21786540]

約数ペア:

[(1, 21786540), (2, 10893270), (3, 7262180), (4, 5446635), (5, 4357308), (6, 3631090), (10, 2178654), (12, 1815545), (15, 1452436), (19, 1146660), (20, 1089327), (29, 751260), (30, 726218), (38, 573330), (57, 382220), (58, 375630), (60, 363109), (76, 286665), (87, 250420), (95, 229332), (114, 191110), (116, 187815), (145, 150252), (174, 125210), (190, 114666), (228, 95555), (285, 76444), (290, 75126), (348, 62605), (380, 57333), (435, 50084), (551, 39540), (570, 38222), (580, 37563), (659, 33060), (870, 25042), (1102, 19770), (1140, 19111), (1318, 16530), (1653, 13180), (1740, 12521), (1977, 11020), (2204, 9885), (2636, 8265), (2755, 7908), (3295, 6612), (3306, 6590), (3954, 5510)]