21073260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27017}}^1$

素因数の和:27042

約数の個数: 48

約数和(自身を含む): 63546336

約数和(自身を除く): 42473076

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, 27017, 54034, 81051, 108068, 135085, 162102, 270170, 324204, 351221, 405255, 540340, 702442, 810510, 1053663, 1404884, 1621020, 1756105, 2107326, 3512210, 4214652, 5268315, 7024420, 10536630, 21073260]

約数ペア:

[(1, 21073260), (2, 10536630), (3, 7024420), (4, 5268315), (5, 4214652), (6, 3512210), (10, 2107326), (12, 1756105), (13, 1621020), (15, 1404884), (20, 1053663), (26, 810510), (30, 702442), (39, 540340), (52, 405255), (60, 351221), (65, 324204), (78, 270170), (130, 162102), (156, 135085), (195, 108068), (260, 81051), (390, 54034), (780, 27017)]