15721264

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{75583}}^1$

素因数の和:75604

約数の個数: 20

約数和(自身を含む): 32803456

約数和(自身を除く): 17082192

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 75583, 151166, 302332, 604664, 982579, 1209328, 1965158, 3930316, 7860632, 15721264]

約数ペア:

[(1, 15721264), (2, 7860632), (4, 3930316), (8, 1965158), (13, 1209328), (16, 982579), (26, 604664), (52, 302332), (104, 151166), (208, 75583)]