21995148

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{261847}}^1$

素因数の和:261861

約数の個数: 24

約数和(自身を含む): 58653952

約数和(自身を除く): 36658804

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 261847, 523694, 785541, 1047388, 1571082, 1832929, 3142164, 3665858, 5498787, 7331716, 10997574, 21995148]

約数ペア:

[(1, 21995148), (2, 10997574), (3, 7331716), (4, 5498787), (6, 3665858), (7, 3142164), (12, 1832929), (14, 1571082), (21, 1047388), (28, 785541), (42, 523694), (84, 261847)]