20081397

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{283}}^1$

素因数の和:433

約数の個数: 32

約数和(自身を含む): 31989760

約数和(自身を除く): 11908363

約数列:

[1, 3, 7, 21, 31, 93, 109, 217, 283, 327, 651, 763, 849, 1981, 2289, 3379, 5943, 8773, 10137, 23653, 26319, 30847, 61411, 70959, 92541, 184233, 215929, 647787, 956257, 2868771, 6693799, 20081397]

約数ペア:

[(1, 20081397), (3, 6693799), (7, 2868771), (21, 956257), (31, 647787), (93, 215929), (109, 184233), (217, 92541), (283, 70959), (327, 61411), (651, 30847), (763, 26319), (849, 23653), (1981, 10137), (2289, 8773), (3379, 5943)]