19404203

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 25460736

約数和(自身を除く): 6056533

約数列:

[1, 7, 13, 23, 73, 91, 127, 161, 299, 511, 889, 949, 1651, 1679, 2093, 2921, 6643, 9271, 11557, 11753, 20447, 21827, 37973, 64897, 120523, 152789, 213233, 265811, 843661, 1492631, 2772029, 19404203]

約数ペア:

[(1, 19404203), (7, 2772029), (13, 1492631), (23, 843661), (73, 265811), (91, 213233), (127, 152789), (161, 120523), (299, 64897), (511, 37973), (889, 21827), (949, 20447), (1651, 11753), (1679, 11557), (2093, 9271), (2921, 6643)]