21963555

素因数分解:

$3^5\times 5^1\times {\mathrm{18077}}^1$

素因数の和:18097

約数の個数: 24

約数和(自身を含む): 39482352

約数和(自身を除く): 17518797

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 18077, 54231, 90385, 162693, 271155, 488079, 813465, 1464237, 2440395, 4392711, 7321185, 21963555]

約数ペア:

[(1, 21963555), (3, 7321185), (5, 4392711), (9, 2440395), (15, 1464237), (27, 813465), (45, 488079), (81, 271155), (135, 162693), (243, 90385), (405, 54231), (1215, 18077)]