21978306

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{174431}}^1$

素因数の和:174446

約数の個数: 24

約数和(自身を含む): 54422784

約数和(自身を除く): 32444478

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 174431, 348862, 523293, 1046586, 1221017, 1569879, 2442034, 3139758, 3663051, 7326102, 10989153, 21978306]

約数ペア:

[(1, 21978306), (2, 10989153), (3, 7326102), (6, 3663051), (7, 3139758), (9, 2442034), (14, 1569879), (18, 1221017), (21, 1046586), (42, 523293), (63, 348862), (126, 174431)]