208505817

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{619}}^1\times {\mathrm{2879}}^1$

素因数の和:3517

約数の個数: 24

約数和(自身を含む): 324979200

約数和(自身を除く): 116473383

約数列:

[1, 3, 9, 13, 39, 117, 619, 1857, 2879, 5571, 8047, 8637, 24141, 25911, 37427, 72423, 112281, 336843, 1782101, 5346303, 16038909, 23167313, 69501939, 208505817]

約数ペア:

[(1, 208505817), (3, 69501939), (9, 23167313), (13, 16038909), (39, 5346303), (117, 1782101), (619, 336843), (1857, 112281), (2879, 72423), (5571, 37427), (8047, 25911), (8637, 24141)]