20203965

素因数分解:

$3^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1453}}^1$

素因数の和:1570

約数の個数: 32

約数和(自身を含む): 36291840

約数和(自身を除く): 16087875

約数列:

[1, 3, 5, 9, 15, 27, 45, 103, 135, 309, 515, 927, 1453, 1545, 2781, 4359, 4635, 7265, 13077, 13905, 21795, 39231, 65385, 149659, 196155, 448977, 748295, 1346931, 2244885, 4040793, 6734655, 20203965]

約数ペア:

[(1, 20203965), (3, 6734655), (5, 4040793), (9, 2244885), (15, 1346931), (27, 748295), (45, 448977), (103, 196155), (135, 149659), (309, 65385), (515, 39231), (927, 21795), (1453, 13905), (1545, 13077), (2781, 7265), (4359, 4635)]