81121138

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{1319}}^1$

素因数の和:1542

約数の個数: 32

約数和(自身を含む): 145981440

約数和(自身を除く): 64860302

約数列:

[1, 2, 7, 14, 23, 46, 161, 191, 322, 382, 1319, 1337, 2638, 2674, 4393, 8786, 9233, 18466, 30337, 30751, 60674, 61502, 212359, 251929, 424718, 503858, 1763503, 3527006, 5794367, 11588734, 40560569, 81121138]

約数ペア:

[(1, 81121138), (2, 40560569), (7, 11588734), (14, 5794367), (23, 3527006), (46, 1763503), (161, 503858), (191, 424718), (322, 251929), (382, 212359), (1319, 61502), (1337, 60674), (2638, 30751), (2674, 30337), (4393, 18466), (8786, 9233)]