201720337

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{331}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 257164544

約数和(自身を除く): 55444207

約数列:

[1, 7, 13, 37, 91, 181, 259, 331, 481, 1267, 2317, 2353, 3367, 4303, 6697, 12247, 16471, 30121, 46879, 59911, 85729, 87061, 159211, 419377, 609427, 778843, 1114477, 2216707, 5451901, 15516949, 28817191, 201720337]

約数ペア:

[(1, 201720337), (7, 28817191), (13, 15516949), (37, 5451901), (91, 2216707), (181, 1114477), (259, 778843), (331, 609427), (481, 419377), (1267, 159211), (2317, 87061), (2353, 85729), (3367, 59911), (4303, 46879), (6697, 30121), (12247, 16471)]