87215884

素因数分解:

$2^2\times 7^2\times {\mathrm{444979}}^1$

素因数の和:444997

約数の個数: 18

約数和(自身を含む): 177547020

約数和(自身を除く): 90331136

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 444979, 889958, 1779916, 3114853, 6229706, 12459412, 21803971, 43607942, 87215884]

約数ペア:

[(1, 87215884), (2, 43607942), (4, 21803971), (7, 12459412), (14, 6229706), (28, 3114853), (49, 1779916), (98, 889958), (196, 444979)]