21684348

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{3187}}^1$

素因数の和:3213

約数の個数: 72

約数和(自身を含む): 64984192

約数和(自身を除く): 43299844

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 108, 126, 162, 189, 243, 252, 324, 378, 486, 567, 756, 972, 1134, 1701, 2268, 3187, 3402, 6374, 6804, 9561, 12748, 19122, 22309, 28683, 38244, 44618, 57366, 66927, 86049, 89236, 114732, 133854, 172098, 200781, 258147, 267708, 344196, 401562, 516294, 602343, 774441, 803124, 1032588, 1204686, 1548882, 1807029, 2409372, 3097764, 3614058, 5421087, 7228116, 10842174, 21684348]

約数ペア:

[(1, 21684348), (2, 10842174), (3, 7228116), (4, 5421087), (6, 3614058), (7, 3097764), (9, 2409372), (12, 1807029), (14, 1548882), (18, 1204686), (21, 1032588), (27, 803124), (28, 774441), (36, 602343), (42, 516294), (54, 401562), (63, 344196), (81, 267708), (84, 258147), (108, 200781), (126, 172098), (162, 133854), (189, 114732), (243, 89236), (252, 86049), (324, 66927), (378, 57366), (486, 44618), (567, 38244), (756, 28683), (972, 22309), (1134, 19122), (1701, 12748), (2268, 9561), (3187, 6804), (3402, 6374)]