399156693

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{1721}}^1$

素因数の和:2069

約数の個数: 32

約数和(自身を含む): 605592960

約数和(自身を除く): 206436267

約数列:

[1, 3, 13, 19, 39, 57, 247, 313, 741, 939, 1721, 4069, 5163, 5947, 12207, 17841, 22373, 32699, 67119, 77311, 98097, 231933, 425087, 538673, 1275261, 1616019, 7002749, 10234787, 21008247, 30704361, 133052231, 399156693]

約数ペア:

[(1, 399156693), (3, 133052231), (13, 30704361), (19, 21008247), (39, 10234787), (57, 7002749), (247, 1616019), (313, 1275261), (741, 538673), (939, 425087), (1721, 231933), (4069, 98097), (5163, 77311), (5947, 67119), (12207, 32699), (17841, 22373)]