21346260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27367}}^1$

素因数の和:27392

約数の個数: 48

約数和(自身を含む): 64369536

約数和(自身を除く): 43023276

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 27367, 54734, 82101, 109468, 136835, 164202, 273670, 328404, 355771, 410505, 547340, 711542, 821010, 1067313, 1423084, 1642020, 1778855, 2134626, 3557710, 4269252, 5336565, 7115420, 10673130, 21346260]

約数ペア:

[(1, 21346260), (2, 10673130), (3, 7115420), (4, 5336565), (5, 4269252), (6, 3557710), (10, 2134626), (12, 1778855), (13, 1642020), (15, 1423084), (20, 1067313), (26, 821010), (30, 711542), (39, 547340), (52, 410505), (60, 355771), (65, 328404), (78, 273670), (130, 164202), (156, 136835), (195, 109468), (260, 82101), (390, 54734), (780, 27367)]