399838971

素因数分解:

$3^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{32771}}^1$

素因数の和:32871

約数の個数: 24

約数和(自身を含む): 627649344

約数和(自身を除く): 227810373

約数列:

[1, 3, 7, 21, 49, 83, 147, 249, 581, 1743, 4067, 12201, 32771, 98313, 229397, 688191, 1605779, 2719993, 4817337, 8159979, 19039951, 57119853, 133279657, 399838971]

約数ペア:

[(1, 399838971), (3, 133279657), (7, 57119853), (21, 19039951), (49, 8159979), (83, 4817337), (147, 2719993), (249, 1605779), (581, 688191), (1743, 229397), (4067, 98313), (12201, 32771)]