19691427

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{691}}^1$

素因数の和:783

約数の個数: 32

約数和(自身を含む): 31887360

約数和(自身を除く): 12195933

約数列:

[1, 3, 7, 21, 23, 59, 69, 161, 177, 413, 483, 691, 1239, 1357, 2073, 4071, 4837, 9499, 14511, 15893, 28497, 40769, 47679, 111251, 122307, 285383, 333753, 856149, 937687, 2813061, 6563809, 19691427]

約数ペア:

[(1, 19691427), (3, 6563809), (7, 2813061), (21, 937687), (23, 856149), (59, 333753), (69, 285383), (161, 122307), (177, 111251), (413, 47679), (483, 40769), (691, 28497), (1239, 15893), (1357, 14511), (2073, 9499), (4071, 4837)]