21552752

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{103619}}^1$

素因数の和:103640

約数の個数: 20

約数和(自身を含む): 44971080

約数和(自身を除く): 23418328

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 103619, 207238, 414476, 828952, 1347047, 1657904, 2694094, 5388188, 10776376, 21552752]

約数ペア:

[(1, 21552752), (2, 10776376), (4, 5388188), (8, 2694094), (13, 1657904), (16, 1347047), (26, 828952), (52, 414476), (104, 207238), (208, 103619)]