20266545

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2417}}^1$

素因数の和:2481

約数の個数: 32

約数和(自身を含む): 35747712

約数和(自身を除く): 15481167

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 129, 195, 215, 559, 645, 1677, 2417, 2795, 7251, 8385, 12085, 31421, 36255, 94263, 103931, 157105, 311793, 471315, 519655, 1351103, 1558965, 4053309, 6755515, 20266545]

約数ペア:

[(1, 20266545), (3, 6755515), (5, 4053309), (13, 1558965), (15, 1351103), (39, 519655), (43, 471315), (65, 311793), (129, 157105), (195, 103931), (215, 94263), (559, 36255), (645, 31421), (1677, 12085), (2417, 8385), (2795, 7251)]