21294700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1049}}^1$

素因数の和:1099

約数の個数: 72

約数和(自身を含む): 54684000

約数和(自身を除く): 33389300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 29, 35, 50, 58, 70, 100, 116, 140, 145, 175, 203, 290, 350, 406, 580, 700, 725, 812, 1015, 1049, 1450, 2030, 2098, 2900, 4060, 4196, 5075, 5245, 7343, 10150, 10490, 14686, 20300, 20980, 26225, 29372, 30421, 36715, 52450, 60842, 73430, 104900, 121684, 146860, 152105, 183575, 212947, 304210, 367150, 425894, 608420, 734300, 760525, 851788, 1064735, 1521050, 2129470, 3042100, 4258940, 5323675, 10647350, 21294700]

約数ペア:

[(1, 21294700), (2, 10647350), (4, 5323675), (5, 4258940), (7, 3042100), (10, 2129470), (14, 1521050), (20, 1064735), (25, 851788), (28, 760525), (29, 734300), (35, 608420), (50, 425894), (58, 367150), (70, 304210), (100, 212947), (116, 183575), (140, 152105), (145, 146860), (175, 121684), (203, 104900), (290, 73430), (350, 60842), (406, 52450), (580, 36715), (700, 30421), (725, 29372), (812, 26225), (1015, 20980), (1049, 20300), (1450, 14686), (2030, 10490), (2098, 10150), (2900, 7343), (4060, 5245), (4196, 5075)]