217870984

素因数分解:

$2^3\times {\mathrm{1123}}^1\times {\mathrm{24251}}^1$

素因数の和:25380

約数の個数: 16

約数和(自身を含む): 408888720

約数和(自身を除く): 191017736

約数列:

[1, 2, 4, 8, 1123, 2246, 4492, 8984, 24251, 48502, 97004, 194008, 27233873, 54467746, 108935492, 217870984]

約数ペア:

[(1, 217870984), (2, 108935492), (4, 54467746), (8, 27233873), (1123, 194008), (2246, 97004), (4492, 48502), (8984, 24251)]