21951830

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{30071}}^1$

素因数の和:30151

約数の個数: 16

約数和(自身を含む): 40055904

約数和(自身を除く): 18104074

約数列:

[1, 2, 5, 10, 73, 146, 365, 730, 30071, 60142, 150355, 300710, 2195183, 4390366, 10975915, 21951830]

約数ペア:

[(1, 21951830), (2, 10975915), (5, 4390366), (10, 2195183), (73, 300710), (146, 150355), (365, 60142), (730, 30071)]