21798986

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{643}}^1$

素因数の和:746

約数の個数: 32

約数和(自身を含む): 37836288

約数和(自身を除く): 16037302

約数列:

[1, 2, 11, 22, 23, 46, 67, 134, 253, 506, 643, 737, 1286, 1474, 1541, 3082, 7073, 14146, 14789, 16951, 29578, 33902, 43081, 86162, 162679, 325358, 473891, 947782, 990863, 1981726, 10899493, 21798986]

約数ペア:

[(1, 21798986), (2, 10899493), (11, 1981726), (22, 990863), (23, 947782), (46, 473891), (67, 325358), (134, 162679), (253, 86162), (506, 43081), (643, 33902), (737, 29578), (1286, 16951), (1474, 14789), (1541, 14146), (3082, 7073)]