128304813

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{1787}}^1$

素因数の和:2073

約数の個数: 32

約数和(自身を含む): 211470336

約数和(自身を除く): 83165523

約数列:

[1, 3, 7, 13, 21, 39, 91, 263, 273, 789, 1787, 1841, 3419, 5361, 5523, 10257, 12509, 23231, 23933, 37527, 69693, 71799, 162617, 469981, 487851, 1409943, 3289867, 6109753, 9869601, 18329259, 42768271, 128304813]

約数ペア:

[(1, 128304813), (3, 42768271), (7, 18329259), (13, 9869601), (21, 6109753), (39, 3289867), (91, 1409943), (263, 487851), (273, 469981), (789, 162617), (1787, 71799), (1841, 69693), (3419, 37527), (5361, 23933), (5523, 23231), (10257, 12509)]