291470907

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{7681}}^1$

素因数の和:7843

約数の個数: 32

約数和(自身を含む): 481815040

約数和(自身を除く): 190344133

約数列:

[1, 3, 7, 13, 21, 39, 91, 139, 273, 417, 973, 1807, 2919, 5421, 7681, 12649, 23043, 37947, 53767, 99853, 161301, 299559, 698971, 1067659, 2096913, 3202977, 7473613, 13879567, 22420839, 41638701, 97156969, 291470907]

約数ペア:

[(1, 291470907), (3, 97156969), (7, 41638701), (13, 22420839), (21, 13879567), (39, 7473613), (91, 3202977), (139, 2096913), (273, 1067659), (417, 698971), (973, 299559), (1807, 161301), (2919, 99853), (5421, 53767), (7681, 37947), (12649, 23043)]