31997115

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{22937}}^1$

素因数の和:22979

約数の個数: 24

約数和(自身を含む): 57253248

約数和(自身を除く): 25256133

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 22937, 68811, 114685, 206433, 344055, 711047, 1032165, 2133141, 3555235, 6399423, 10665705, 31997115]

約数ペア:

[(1, 31997115), (3, 10665705), (5, 6399423), (9, 3555235), (15, 2133141), (31, 1032165), (45, 711047), (93, 344055), (155, 206433), (279, 114685), (465, 68811), (1395, 22937)]