18001665

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{887}}^1$

素因数の和:950

約数の個数: 48

約数和(自身を含む): 34909056

約数和(自身を除く): 16907391

約数列:

[1, 3, 5, 9, 11, 15, 33, 41, 45, 55, 99, 123, 165, 205, 369, 451, 495, 615, 887, 1353, 1845, 2255, 2661, 4059, 4435, 6765, 7983, 9757, 13305, 20295, 29271, 36367, 39915, 48785, 87813, 109101, 146355, 181835, 327303, 400037, 439065, 545505, 1200111, 1636515, 2000185, 3600333, 6000555, 18001665]

約数ペア:

[(1, 18001665), (3, 6000555), (5, 3600333), (9, 2000185), (11, 1636515), (15, 1200111), (33, 545505), (41, 439065), (45, 400037), (55, 327303), (99, 181835), (123, 146355), (165, 109101), (205, 87813), (369, 48785), (451, 39915), (495, 36367), (615, 29271), (887, 20295), (1353, 13305), (1845, 9757), (2255, 7983), (2661, 6765), (4059, 4435)]