20713563

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 34245120

約数和(自身を除く): 13531557

約数列:

[1, 3, 9, 13, 27, 39, 79, 81, 83, 117, 237, 243, 249, 351, 711, 747, 1027, 1053, 1079, 2133, 2241, 3081, 3159, 3237, 6399, 6557, 6723, 9243, 9711, 19197, 19671, 20169, 27729, 29133, 59013, 83187, 85241, 87399, 177039, 249561, 255723, 262197, 531117, 767169, 1593351, 2301507, 6904521, 20713563]

約数ペア:

[(1, 20713563), (3, 6904521), (9, 2301507), (13, 1593351), (27, 767169), (39, 531117), (79, 262197), (81, 255723), (83, 249561), (117, 177039), (237, 87399), (243, 85241), (249, 83187), (351, 59013), (711, 29133), (747, 27729), (1027, 20169), (1053, 19671), (1079, 19197), (2133, 9711), (2241, 9243), (3081, 6723), (3159, 6557), (3237, 6399)]