21354678

素因数分解:

$2^1\times 3^4\times {\mathrm{193}}^1\times {\mathrm{683}}^1$

素因数の和:890

約数の個数: 40

約数和(自身を含む): 48168648

約数和(自身を除く): 26813970

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 193, 386, 579, 683, 1158, 1366, 1737, 2049, 3474, 4098, 5211, 6147, 10422, 12294, 15633, 18441, 31266, 36882, 55323, 110646, 131819, 263638, 395457, 790914, 1186371, 2372742, 3559113, 7118226, 10677339, 21354678]

約数ペア:

[(1, 21354678), (2, 10677339), (3, 7118226), (6, 3559113), (9, 2372742), (18, 1186371), (27, 790914), (54, 395457), (81, 263638), (162, 131819), (193, 110646), (386, 55323), (579, 36882), (683, 31266), (1158, 18441), (1366, 15633), (1737, 12294), (2049, 10422), (3474, 6147), (4098, 5211)]