399686571

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{11161}}^1$

素因数の和:11363

約数の個数: 24

約数和(自身を含む): 605962656

約数和(自身を除く): 206276085

約数列:

[1, 3, 9, 23, 69, 173, 207, 519, 1557, 3979, 11161, 11937, 33483, 35811, 100449, 256703, 770109, 1930853, 2310327, 5792559, 17377677, 44409619, 133228857, 399686571]

約数ペア:

[(1, 399686571), (3, 133228857), (9, 44409619), (23, 17377677), (69, 5792559), (173, 2310327), (207, 1930853), (519, 770109), (1557, 256703), (3979, 100449), (11161, 35811), (11937, 33483)]