19645678

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{3797}}^1$

素因数の和:4011

約数の個数: 16

約数和(自身を含む): 31903200

約数和(自身を除く): 12257522

約数列:

[1, 2, 13, 26, 199, 398, 2587, 3797, 5174, 7594, 49361, 98722, 755603, 1511206, 9822839, 19645678]

約数ペア:

[(1, 19645678), (2, 9822839), (13, 1511206), (26, 755603), (199, 98722), (398, 49361), (2587, 7594), (3797, 5174)]