21136836

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{349}}^1$

素因数の和:473

約数の個数: 72

約数和(自身を含む): 58094400

約数和(自身を除く): 36957564

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 103, 147, 196, 206, 294, 309, 349, 412, 588, 618, 698, 721, 1047, 1236, 1396, 1442, 2094, 2163, 2443, 2884, 4188, 4326, 4886, 5047, 7329, 8652, 9772, 10094, 14658, 15141, 17101, 20188, 29316, 30282, 34202, 35947, 51303, 60564, 68404, 71894, 102606, 107841, 143788, 205212, 215682, 251629, 431364, 503258, 754887, 1006516, 1509774, 1761403, 3019548, 3522806, 5284209, 7045612, 10568418, 21136836]

約数ペア:

[(1, 21136836), (2, 10568418), (3, 7045612), (4, 5284209), (6, 3522806), (7, 3019548), (12, 1761403), (14, 1509774), (21, 1006516), (28, 754887), (42, 503258), (49, 431364), (84, 251629), (98, 215682), (103, 205212), (147, 143788), (196, 107841), (206, 102606), (294, 71894), (309, 68404), (349, 60564), (412, 51303), (588, 35947), (618, 34202), (698, 30282), (721, 29316), (1047, 20188), (1236, 17101), (1396, 15141), (1442, 14658), (2094, 10094), (2163, 9772), (2443, 8652), (2884, 7329), (4188, 5047), (4326, 4886)]