161971485

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43717}}^1$

素因数の和:43757

約数の個数: 32

約数和(自身を含む): 293784960

約数和(自身を除く): 131813475

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 95, 195, 247, 285, 741, 1235, 3705, 43717, 131151, 218585, 568321, 655755, 830623, 1704963, 2491869, 2841605, 4153115, 8524815, 10798099, 12459345, 32394297, 53990495, 161971485]

約数ペア:

[(1, 161971485), (3, 53990495), (5, 32394297), (13, 12459345), (15, 10798099), (19, 8524815), (39, 4153115), (57, 2841605), (65, 2491869), (95, 1704963), (195, 830623), (247, 655755), (285, 568321), (741, 218585), (1235, 131151), (3705, 43717)]