21217266

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{168391}}^1$

素因数の和:168406

約数の個数: 24

約数和(自身を含む): 52538304

約数和(自身を除く): 31321038

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 168391, 336782, 505173, 1010346, 1178737, 1515519, 2357474, 3031038, 3536211, 7072422, 10608633, 21217266]

約数ペア:

[(1, 21217266), (2, 10608633), (3, 7072422), (6, 3536211), (7, 3031038), (9, 2357474), (14, 1515519), (18, 1178737), (21, 1010346), (42, 505173), (63, 336782), (126, 168391)]