21472407

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2437}}^1$

素因数の和:2543

約数の個数: 24

約数和(自身を含む): 34229520

約数和(自身を除く): 12757113

約数列:

[1, 3, 9, 11, 33, 89, 99, 267, 801, 979, 2437, 2937, 7311, 8811, 21933, 26807, 80421, 216893, 241263, 650679, 1952037, 2385823, 7157469, 21472407]

約数ペア:

[(1, 21472407), (3, 7157469), (9, 2385823), (11, 1952037), (33, 650679), (89, 241263), (99, 216893), (267, 80421), (801, 26807), (979, 21933), (2437, 8811), (2937, 7311)]