251337987

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{659}}^1\times {\mathrm{1367}}^1$

素因数の和:2063

約数の個数: 24

約数和(自身を含む): 375598080

約数和(自身を除く): 124260093

約数列:

[1, 3, 9, 31, 93, 279, 659, 1367, 1977, 4101, 5931, 12303, 20429, 42377, 61287, 127131, 183861, 381393, 900853, 2702559, 8107677, 27926443, 83779329, 251337987]

約数ペア:

[(1, 251337987), (3, 83779329), (9, 27926443), (31, 8107677), (93, 2702559), (279, 900853), (659, 381393), (1367, 183861), (1977, 127131), (4101, 61287), (5931, 42377), (12303, 20429)]