21971578

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{7129}}^1$

素因数の和:7221

約数の個数: 16

約数和(自身を含む): 34908480

約数和(自身を除く): 12936902

約数列:

[1, 2, 23, 46, 67, 134, 1541, 3082, 7129, 14258, 163967, 327934, 477643, 955286, 10985789, 21971578]

約数ペア:

[(1, 21971578), (2, 10985789), (23, 955286), (46, 477643), (67, 327934), (134, 163967), (1541, 14258), (3082, 7129)]