20654577

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^2$

素因数の和:174

約数の個数: 36

約数和(自身を含む): 32752720

約数和(自身を除く): 12098143

約数列:

[1, 3, 9, 19, 43, 53, 57, 129, 159, 171, 387, 477, 817, 1007, 2279, 2451, 2809, 3021, 6837, 7353, 8427, 9063, 20511, 25281, 43301, 53371, 120787, 129903, 160113, 362361, 389709, 480339, 1087083, 2294953, 6884859, 20654577]

約数ペア:

[(1, 20654577), (3, 6884859), (9, 2294953), (19, 1087083), (43, 480339), (53, 389709), (57, 362361), (129, 160113), (159, 129903), (171, 120787), (387, 53371), (477, 43301), (817, 25281), (1007, 20511), (2279, 9063), (2451, 8427), (2809, 7353), (3021, 6837)]