19163859

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:200

約数の個数: 48

約数和(自身を含む): 31460352

約数和(自身を除く): 12296493

約数列:

[1, 3, 11, 13, 31, 33, 39, 93, 121, 131, 143, 341, 363, 393, 403, 429, 1023, 1209, 1441, 1573, 1703, 3751, 4061, 4323, 4433, 4719, 5109, 11253, 12183, 13299, 15851, 18733, 44671, 47553, 48763, 52793, 56199, 134013, 146289, 158379, 206063, 491381, 580723, 618189, 1474143, 1742169, 6387953, 19163859]

約数ペア:

[(1, 19163859), (3, 6387953), (11, 1742169), (13, 1474143), (31, 618189), (33, 580723), (39, 491381), (93, 206063), (121, 158379), (131, 146289), (143, 134013), (341, 56199), (363, 52793), (393, 48763), (403, 47553), (429, 44671), (1023, 18733), (1209, 15851), (1441, 13299), (1573, 12183), (1703, 11253), (3751, 5109), (4061, 4719), (4323, 4433)]