18664545

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{401}}^1$

素因数の和:545

約数の個数: 32

約数和(自身を含む): 31259520

約数和(自身を除く): 12594975

約数列:

[1, 3, 5, 15, 29, 87, 107, 145, 321, 401, 435, 535, 1203, 1605, 2005, 3103, 6015, 9309, 11629, 15515, 34887, 42907, 46545, 58145, 128721, 174435, 214535, 643605, 1244303, 3732909, 6221515, 18664545]

約数ペア:

[(1, 18664545), (3, 6221515), (5, 3732909), (15, 1244303), (29, 643605), (87, 214535), (107, 174435), (145, 128721), (321, 58145), (401, 46545), (435, 42907), (535, 34887), (1203, 15515), (1605, 11629), (2005, 9309), (3103, 6015)]