21529396

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{9733}}^1$

素因数の和:9823

約数の個数: 24

約数和(自身を含む): 43608320

約数和(自身を除く): 22078924

約数列:

[1, 2, 4, 7, 14, 28, 79, 158, 316, 553, 1106, 2212, 9733, 19466, 38932, 68131, 136262, 272524, 768907, 1537814, 3075628, 5382349, 10764698, 21529396]

約数ペア:

[(1, 21529396), (2, 10764698), (4, 5382349), (7, 3075628), (14, 1537814), (28, 768907), (79, 272524), (158, 136262), (316, 68131), (553, 38932), (1106, 19466), (2212, 9733)]