217872459

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{203429}}^1$

素因数の和:203459

約数の個数: 24

約数和(自身を含む): 380820960

約数和(自身を除く): 162948501

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 203429, 610287, 1424003, 1830861, 3458293, 4272009, 10374879, 12816027, 24208051, 31124637, 72624153, 217872459]

約数ペア:

[(1, 217872459), (3, 72624153), (7, 31124637), (9, 24208051), (17, 12816027), (21, 10374879), (51, 4272009), (63, 3458293), (119, 1830861), (153, 1424003), (357, 610287), (1071, 203429)]