20684248

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{15299}}^1$

素因数の和:15331

約数の個数: 24

約数和(自身を含む): 41998500

約数和(自身を除く): 21314252

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1352, 15299, 30598, 61196, 122392, 198887, 397774, 795548, 1591096, 2585531, 5171062, 10342124, 20684248]

約数ペア:

[(1, 20684248), (2, 10342124), (4, 5171062), (8, 2585531), (13, 1591096), (26, 795548), (52, 397774), (104, 198887), (169, 122392), (338, 61196), (676, 30598), (1352, 15299)]