671661571

素因数分解:

$7^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{4481}}^1$

素因数の和:4544

約数の個数: 32

約数和(自身を含む): 860544000

約数和(自身を除く): 188882429

約数列:

[1, 7, 19, 23, 49, 133, 161, 343, 437, 931, 1127, 3059, 4481, 6517, 7889, 21413, 31367, 85139, 103063, 149891, 219569, 595973, 721441, 1536983, 1958197, 4171811, 5050087, 13707379, 29202677, 35350609, 95951653, 671661571]

約数ペア:

[(1, 671661571), (7, 95951653), (19, 35350609), (23, 29202677), (49, 13707379), (133, 5050087), (161, 4171811), (343, 1958197), (437, 1536983), (931, 721441), (1127, 595973), (3059, 219569), (4481, 149891), (6517, 103063), (7889, 85139), (21413, 31367)]