19918635

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1979}}^1$

素因数の和:2059

約数の個数: 32

約数和(自身を含む): 35354880

約数和(自身を除く): 15436245

約数列:

[1, 3, 5, 11, 15, 33, 55, 61, 165, 183, 305, 671, 915, 1979, 2013, 3355, 5937, 9895, 10065, 21769, 29685, 65307, 108845, 120719, 326535, 362157, 603595, 1327909, 1810785, 3983727, 6639545, 19918635]

約数ペア:

[(1, 19918635), (3, 6639545), (5, 3983727), (11, 1810785), (15, 1327909), (33, 603595), (55, 362157), (61, 326535), (165, 120719), (183, 108845), (305, 65307), (671, 29685), (915, 21769), (1979, 10065), (2013, 9895), (3355, 5937)]