21403395

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36587}}^1$

素因数の和:36611

約数の個数: 24

約数和(自身を含む): 39954096

約数和(自身を除く): 18550701

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 36587, 109761, 182935, 329283, 475631, 548805, 1426893, 1646415, 2378155, 4280679, 7134465, 21403395]

約数ペア:

[(1, 21403395), (3, 7134465), (5, 4280679), (9, 2378155), (13, 1646415), (15, 1426893), (39, 548805), (45, 475631), (65, 329283), (117, 182935), (195, 109761), (585, 36587)]