18289648

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{87931}}^1$

素因数の和:87952

約数の個数: 20

約数和(自身を含む): 38162488

約数和(自身を除く): 19872840

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 87931, 175862, 351724, 703448, 1143103, 1406896, 2286206, 4572412, 9144824, 18289648]

約数ペア:

[(1, 18289648), (2, 9144824), (4, 4572412), (8, 2286206), (13, 1406896), (16, 1143103), (26, 703448), (52, 351724), (104, 175862), (208, 87931)]