20442653

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1$

素因数の和:162

約数の個数: 48

約数和(自身を含む): 28957824

約数和(自身を除く): 8515171

約数列:

[1, 7, 11, 17, 23, 49, 77, 97, 119, 161, 187, 253, 391, 539, 679, 833, 1067, 1127, 1309, 1649, 1771, 2231, 2737, 4301, 4753, 7469, 9163, 11543, 12397, 15617, 18139, 19159, 24541, 30107, 37927, 52283, 80801, 109319, 126973, 171787, 210749, 265489, 417197, 888811, 1202509, 1858423, 2920379, 20442653]

約数ペア:

[(1, 20442653), (7, 2920379), (11, 1858423), (17, 1202509), (23, 888811), (49, 417197), (77, 265489), (97, 210749), (119, 171787), (161, 126973), (187, 109319), (253, 80801), (391, 52283), (539, 37927), (679, 30107), (833, 24541), (1067, 19159), (1127, 18139), (1309, 15617), (1649, 12397), (1771, 11543), (2231, 9163), (2737, 7469), (4301, 4753)]