20763309

素因数分解:

$3^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{1031}}^1$

素因数の和:1185

約数の個数: 24

約数和(自身を含む): 32470848

約数和(自身を除く): 11707539

約数列:

[1, 3, 7, 21, 49, 137, 147, 411, 959, 1031, 2877, 3093, 6713, 7217, 20139, 21651, 50519, 141247, 151557, 423741, 988729, 2966187, 6921103, 20763309]

約数ペア:

[(1, 20763309), (3, 6921103), (7, 2966187), (21, 988729), (49, 423741), (137, 151557), (147, 141247), (411, 50519), (959, 21651), (1031, 20139), (2877, 7217), (3093, 6713)]