20502873

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1709}}^1$

素因数の和:1789

約数の個数: 24

約数和(自身を含む): 31299840

約数和(自身を除く): 10796967

約数列:

[1, 3, 9, 31, 43, 93, 129, 279, 387, 1333, 1709, 3999, 5127, 11997, 15381, 52979, 73487, 158937, 220461, 476811, 661383, 2278097, 6834291, 20502873]

約数ペア:

[(1, 20502873), (3, 6834291), (9, 2278097), (31, 661383), (43, 476811), (93, 220461), (129, 158937), (279, 73487), (387, 52979), (1333, 15381), (1709, 11997), (3999, 5127)]