18901330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{9311}}^1$

素因数の和:9354

約数の個数: 32

約数和(自身を含む): 40227840

約数和(自身を除く): 21326510

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 9311, 18622, 46555, 65177, 93110, 130354, 270019, 325885, 540038, 651770, 1350095, 1890133, 2700190, 3780266, 9450665, 18901330]

約数ペア:

[(1, 18901330), (2, 9450665), (5, 3780266), (7, 2700190), (10, 1890133), (14, 1350095), (29, 651770), (35, 540038), (58, 325885), (70, 270019), (145, 130354), (203, 93110), (290, 65177), (406, 46555), (1015, 18622), (2030, 9311)]