21147718

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{11213}}^1$

素因数の和:11279

約数の個数: 16

約数和(自身を含む): 33911136

約数和(自身を除く): 12763418

約数列:

[1, 2, 23, 41, 46, 82, 943, 1886, 11213, 22426, 257899, 459733, 515798, 919466, 10573859, 21147718]

約数ペア:

[(1, 21147718), (2, 10573859), (23, 919466), (41, 515798), (46, 459733), (82, 257899), (943, 22426), (1886, 11213)]