20502159

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 30336000

約数和(自身を除く): 9833841

約数列:

[1, 3, 19, 29, 57, 79, 87, 157, 237, 471, 551, 1501, 1653, 2291, 2983, 4503, 4553, 6873, 8949, 12403, 13659, 37209, 43529, 86507, 130587, 235657, 259521, 359687, 706971, 1079061, 6834053, 20502159]

約数ペア:

[(1, 20502159), (3, 6834053), (19, 1079061), (29, 706971), (57, 359687), (79, 259521), (87, 235657), (157, 130587), (237, 86507), (471, 43529), (551, 37209), (1501, 13659), (1653, 12403), (2291, 8949), (2983, 6873), (4503, 4553)]