20669168

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{99371}}^1$

素因数の和:99392

約数の個数: 20

約数和(自身を含む): 43127448

約数和(自身を除く): 22458280

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 99371, 198742, 397484, 794968, 1291823, 1589936, 2583646, 5167292, 10334584, 20669168]

約数ペア:

[(1, 20669168), (2, 10334584), (4, 5167292), (8, 2583646), (13, 1589936), (16, 1291823), (26, 794968), (52, 397484), (104, 198742), (208, 99371)]