19847355

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3251}}^1$

素因数の和:3307

約数の個数: 32

約数和(自身を含む): 35589888

約数和(自身を除く): 15742533

約数列:

[1, 3, 5, 11, 15, 33, 37, 55, 111, 165, 185, 407, 555, 1221, 2035, 3251, 6105, 9753, 16255, 35761, 48765, 107283, 120287, 178805, 360861, 536415, 601435, 1323157, 1804305, 3969471, 6615785, 19847355]

約数ペア:

[(1, 19847355), (3, 6615785), (5, 3969471), (11, 1804305), (15, 1323157), (33, 601435), (37, 536415), (55, 360861), (111, 178805), (165, 120287), (185, 107283), (407, 48765), (555, 35761), (1221, 16255), (2035, 9753), (3251, 6105)]