18280457

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{457}}^1$

素因数の和:668

約数の個数: 16

約数和(自身を含む): 21005712

約数和(自身を除く): 2725255

約数列:

[1, 13, 17, 181, 221, 457, 2353, 3077, 5941, 7769, 40001, 82717, 100997, 1075321, 1406189, 18280457]

約数ペア:

[(1, 18280457), (13, 1406189), (17, 1075321), (181, 100997), (221, 82717), (457, 40001), (2353, 7769), (3077, 5941)]