21591684

素因数分解:

$2^2\times 3^4\times {\mathrm{103}}^1\times {\mathrm{647}}^1$

素因数の和:766

約数の個数: 60

約数和(自身を含む): 57081024

約数和(自身を除く): 35489340

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 103, 108, 162, 206, 309, 324, 412, 618, 647, 927, 1236, 1294, 1854, 1941, 2588, 2781, 3708, 3882, 5562, 5823, 7764, 8343, 11124, 11646, 16686, 17469, 23292, 33372, 34938, 52407, 66641, 69876, 104814, 133282, 199923, 209628, 266564, 399846, 599769, 799692, 1199538, 1799307, 2399076, 3598614, 5397921, 7197228, 10795842, 21591684]

約数ペア:

[(1, 21591684), (2, 10795842), (3, 7197228), (4, 5397921), (6, 3598614), (9, 2399076), (12, 1799307), (18, 1199538), (27, 799692), (36, 599769), (54, 399846), (81, 266564), (103, 209628), (108, 199923), (162, 133282), (206, 104814), (309, 69876), (324, 66641), (412, 52407), (618, 34938), (647, 33372), (927, 23292), (1236, 17469), (1294, 16686), (1854, 11646), (1941, 11124), (2588, 8343), (2781, 7764), (3708, 5823), (3882, 5562)]