21088392

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{263}}^1$

素因数の和:542

約数の個数: 64

約数和(自身を含む): 57214080

約数和(自身を除く): 36125688

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 257, 263, 312, 514, 526, 771, 789, 1028, 1052, 1542, 1578, 2056, 2104, 3084, 3156, 3341, 3419, 6168, 6312, 6682, 6838, 10023, 10257, 13364, 13676, 20046, 20514, 26728, 27352, 40092, 41028, 67591, 80184, 82056, 135182, 202773, 270364, 405546, 540728, 811092, 878683, 1622184, 1757366, 2636049, 3514732, 5272098, 7029464, 10544196, 21088392]

約数ペア:

[(1, 21088392), (2, 10544196), (3, 7029464), (4, 5272098), (6, 3514732), (8, 2636049), (12, 1757366), (13, 1622184), (24, 878683), (26, 811092), (39, 540728), (52, 405546), (78, 270364), (104, 202773), (156, 135182), (257, 82056), (263, 80184), (312, 67591), (514, 41028), (526, 40092), (771, 27352), (789, 26728), (1028, 20514), (1052, 20046), (1542, 13676), (1578, 13364), (2056, 10257), (2104, 10023), (3084, 6838), (3156, 6682), (3341, 6312), (3419, 6168)]