20617155

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2711}}^1$

素因数の和:2748

約数の個数: 36

約数和(自身を含む): 38711088

約数和(自身を除く): 18093933

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 169, 195, 507, 585, 845, 1521, 2535, 2711, 7605, 8133, 13555, 24399, 35243, 40665, 105729, 121995, 176215, 317187, 458159, 528645, 1374477, 1585935, 2290795, 4123431, 6872385, 20617155]

約数ペア:

[(1, 20617155), (3, 6872385), (5, 4123431), (9, 2290795), (13, 1585935), (15, 1374477), (39, 528645), (45, 458159), (65, 317187), (117, 176215), (169, 121995), (195, 105729), (507, 40665), (585, 35243), (845, 24399), (1521, 13555), (2535, 8133), (2711, 7605)]