21815556

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{15277}}^1$

素因数の和:15308

約数の個数: 48

約数和(自身を含む): 61600896

約数和(自身を除く): 39785340

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 51, 68, 84, 102, 119, 204, 238, 357, 476, 714, 1428, 15277, 30554, 45831, 61108, 91662, 106939, 183324, 213878, 259709, 320817, 427756, 519418, 641634, 779127, 1038836, 1283268, 1558254, 1817963, 3116508, 3635926, 5453889, 7271852, 10907778, 21815556]

約数ペア:

[(1, 21815556), (2, 10907778), (3, 7271852), (4, 5453889), (6, 3635926), (7, 3116508), (12, 1817963), (14, 1558254), (17, 1283268), (21, 1038836), (28, 779127), (34, 641634), (42, 519418), (51, 427756), (68, 320817), (84, 259709), (102, 213878), (119, 183324), (204, 106939), (238, 91662), (357, 61108), (476, 45831), (714, 30554), (1428, 15277)]