21063978

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{90017}}^1$

素因数の和:90038

約数の個数: 24

約数和(自身を含む): 49149828

約数和(自身を除く): 28085850

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 90017, 180034, 270051, 540102, 810153, 1170221, 1620306, 2340442, 3510663, 7021326, 10531989, 21063978]

約数ペア:

[(1, 21063978), (2, 10531989), (3, 7021326), (6, 3510663), (9, 2340442), (13, 1620306), (18, 1170221), (26, 810153), (39, 540102), (78, 270051), (117, 180034), (234, 90017)]