19490049

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:469

約数の個数: 24

約数和(自身を含む): 28938624

約数和(自身を除く): 9448575

約数列:

[1, 3, 9, 61, 131, 183, 271, 393, 549, 813, 1179, 2439, 7991, 16531, 23973, 35501, 49593, 71919, 106503, 148779, 319509, 2165561, 6496683, 19490049]

約数ペア:

[(1, 19490049), (3, 6496683), (9, 2165561), (61, 319509), (131, 148779), (183, 106503), (271, 71919), (393, 49593), (549, 35501), (813, 23973), (1179, 16531), (2439, 7991)]