21217740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{353629}}^1$

素因数の和:353641

約数の個数: 24

約数和(自身を含む): 59409840

約数和(自身を除く): 38192100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 353629, 707258, 1060887, 1414516, 1768145, 2121774, 3536290, 4243548, 5304435, 7072580, 10608870, 21217740]

約数ペア:

[(1, 21217740), (2, 10608870), (3, 7072580), (4, 5304435), (5, 4243548), (6, 3536290), (10, 2121774), (12, 1768145), (15, 1414516), (20, 1060887), (30, 707258), (60, 353629)]