20666535

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1619}}^1$

素因数の和:1687

約数の個数: 32

約数和(自身を含む): 35458560

約数和(自身を除く): 14792025

約数列:

[1, 3, 5, 15, 23, 37, 69, 111, 115, 185, 345, 555, 851, 1619, 2553, 4255, 4857, 8095, 12765, 24285, 37237, 59903, 111711, 179709, 186185, 299515, 558555, 898545, 1377769, 4133307, 6888845, 20666535]

約数ペア:

[(1, 20666535), (3, 6888845), (5, 4133307), (15, 1377769), (23, 898545), (37, 558555), (69, 299515), (111, 186185), (115, 179709), (185, 111711), (345, 59903), (555, 37237), (851, 24285), (1619, 12765), (2553, 8095), (4255, 4857)]