21395710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16087}}^1$

素因数の和:16120

約数の個数: 32

約数和(自身を含む): 46333440

約数和(自身を除く): 24937730

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 16087, 32174, 80435, 112609, 160870, 225218, 305653, 563045, 611306, 1126090, 1528265, 2139571, 3056530, 4279142, 10697855, 21395710]

約数ペア:

[(1, 21395710), (2, 10697855), (5, 4279142), (7, 3056530), (10, 2139571), (14, 1528265), (19, 1126090), (35, 611306), (38, 563045), (70, 305653), (95, 225218), (133, 160870), (190, 112609), (266, 80435), (665, 32174), (1330, 16087)]