18453215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 25436160

約数和(自身を除く): 6982945

約数列:

[1, 5, 11, 31, 55, 79, 137, 155, 341, 395, 685, 869, 1507, 1705, 2449, 4247, 4345, 7535, 10823, 12245, 21235, 26939, 46717, 54115, 119053, 134695, 233585, 335513, 595265, 1677565, 3690643, 18453215]

約数ペア:

[(1, 18453215), (5, 3690643), (11, 1677565), (31, 595265), (55, 335513), (79, 233585), (137, 134695), (155, 119053), (341, 54115), (395, 46717), (685, 26939), (869, 21235), (1507, 12245), (1705, 10823), (2449, 7535), (4247, 4345)]