19695428

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{199}}^1\times {\mathrm{227}}^1$

素因数の和:539

約数の個数: 24

約数和(自身を含む): 35112000

約数和(自身を除く): 15416572

約数列:

[1, 2, 4, 109, 199, 218, 227, 398, 436, 454, 796, 908, 21691, 24743, 43382, 45173, 49486, 86764, 90346, 98972, 180692, 4923857, 9847714, 19695428]

約数ペア:

[(1, 19695428), (2, 9847714), (4, 4923857), (109, 180692), (199, 98972), (218, 90346), (227, 86764), (398, 49486), (436, 45173), (454, 43382), (796, 24743), (908, 21691)]