399893679

素因数分解:

$3^6\times {\mathrm{43}}^1\times {\mathrm{12757}}^1$

素因数の和:12818

約数の個数: 28

約数和(自身を含む): 613557736

約数和(自身を除く): 213664057

約数列:

[1, 3, 9, 27, 43, 81, 129, 243, 387, 729, 1161, 3483, 10449, 12757, 31347, 38271, 114813, 344439, 548551, 1033317, 1645653, 3099951, 4936959, 9299853, 14810877, 44432631, 133297893, 399893679]

約数ペア:

[(1, 399893679), (3, 133297893), (9, 44432631), (27, 14810877), (43, 9299853), (81, 4936959), (129, 3099951), (243, 1645653), (387, 1033317), (729, 548551), (1161, 344439), (3483, 114813), (10449, 38271), (12757, 31347)]