21255237

素因数分解:

$3^3\times {\mathrm{521}}^1\times {\mathrm{1511}}^1$

素因数の和:2041

約数の個数: 16

約数和(自身を含む): 31570560

約数和(自身を除く): 10315323

約数列:

[1, 3, 9, 27, 521, 1511, 1563, 4533, 4689, 13599, 14067, 40797, 787231, 2361693, 7085079, 21255237]

約数ペア:

[(1, 21255237), (3, 7085079), (9, 2361693), (27, 787231), (521, 40797), (1511, 14067), (1563, 13599), (4533, 4689)]