20864403

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{4943}}^1$

素因数の和:5023

約数の個数: 24

約数和(自身を含む): 34963968

約数和(自身を除く): 14099565

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 4943, 14829, 34601, 44487, 103803, 311409, 331181, 993543, 2318267, 2980629, 6954801, 20864403]

約数ペア:

[(1, 20864403), (3, 6954801), (7, 2980629), (9, 2318267), (21, 993543), (63, 331181), (67, 311409), (201, 103803), (469, 44487), (603, 34601), (1407, 14829), (4221, 4943)]