17979661648

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{86440681}}^1$

素因数の和:86440702

約数の個数: 20

約数和(自身を含む): 37515255988

約数和(自身を除く): 19535594340

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 86440681, 172881362, 345762724, 691525448, 1123728853, 1383050896, 2247457706, 4494915412, 8989830824, 17979661648]

約数ペア:

[(1, 17979661648), (2, 8989830824), (4, 4494915412), (8, 2247457706), (13, 1383050896), (16, 1123728853), (26, 691525448), (52, 345762724), (104, 172881362), (208, 86440681)]