21788897110

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{128169983}}^1$

素因数の和:128170007

約数の個数: 16

約数和(自身を含む): 41527074816

約数和(自身を除く): 19738177706

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 128169983, 256339966, 640849915, 1281699830, 2178889711, 4357779422, 10894448555, 21788897110]

約数ペア:

[(1, 21788897110), (2, 10894448555), (5, 4357779422), (10, 2178889711), (17, 1281699830), (34, 640849915), (85, 256339966), (170, 128169983)]