19020595

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:387

約数の個数: 24

約数和(自身を含む): 25376400

約数和(自身を除く): 6355805

約数列:

[1, 5, 11, 55, 121, 149, 211, 605, 745, 1055, 1639, 2321, 8195, 11605, 18029, 25531, 31439, 90145, 127655, 157195, 345829, 1729145, 3804119, 19020595]

約数ペア:

[(1, 19020595), (5, 3804119), (11, 1729145), (55, 345829), (121, 157195), (149, 127655), (211, 90145), (605, 31439), (745, 25531), (1055, 18029), (1639, 11605), (2321, 8195)]