388268433

素因数分解:

$3^2\times 7^1\times {\mathrm{349}}^1\times {\mathrm{17659}}^1$

素因数の和:18021

約数の個数: 24

約数和(自身を含む): 642824000

約数和(自身を除く): 254555567

約数列:

[1, 3, 7, 9, 21, 63, 349, 1047, 2443, 3141, 7329, 17659, 21987, 52977, 123613, 158931, 370839, 1112517, 6162991, 18488973, 43140937, 55466919, 129422811, 388268433]

約数ペア:

[(1, 388268433), (3, 129422811), (7, 55466919), (9, 43140937), (21, 18488973), (63, 6162991), (349, 1112517), (1047, 370839), (2443, 158931), (3141, 123613), (7329, 52977), (17659, 21987)]