18984315

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1123}}^1$

素因数の和:1168

約数の個数: 48

約数和(自身を含む): 36903168

約数和(自身を除く): 17918853

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 49, 69, 105, 115, 147, 161, 245, 345, 483, 735, 805, 1123, 1127, 2415, 3369, 3381, 5615, 5635, 7861, 16845, 16905, 23583, 25829, 39305, 55027, 77487, 117915, 129145, 165081, 180803, 275135, 387435, 542409, 825405, 904015, 1265621, 2712045, 3796863, 6328105, 18984315]

約数ペア:

[(1, 18984315), (3, 6328105), (5, 3796863), (7, 2712045), (15, 1265621), (21, 904015), (23, 825405), (35, 542409), (49, 387435), (69, 275135), (105, 180803), (115, 165081), (147, 129145), (161, 117915), (245, 77487), (345, 55027), (483, 39305), (735, 25829), (805, 23583), (1123, 16905), (1127, 16845), (2415, 7861), (3369, 5635), (3381, 5615)]