19738197

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{229}}^1$

素因数の和:453

約数の個数: 24

約数和(自身を含む): 29290040

約数和(自身を除く): 9551843

約数列:

[1, 3, 9, 61, 157, 183, 229, 471, 549, 687, 1413, 2061, 9577, 13969, 28731, 35953, 41907, 86193, 107859, 125721, 323577, 2193133, 6579399, 19738197]

約数ペア:

[(1, 19738197), (3, 6579399), (9, 2193133), (61, 323577), (157, 125721), (183, 107859), (229, 86193), (471, 41907), (549, 35953), (687, 28731), (1413, 13969), (2061, 9577)]