19213168

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1301}}^1$

素因数の和:1393

約数の個数: 40

約数和(自身を含む): 40684896

約数和(自身を除く): 21471728

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 71, 104, 142, 208, 284, 568, 923, 1136, 1301, 1846, 2602, 3692, 5204, 7384, 10408, 14768, 16913, 20816, 33826, 67652, 92371, 135304, 184742, 270608, 369484, 738968, 1200823, 1477936, 2401646, 4803292, 9606584, 19213168]

約数ペア:

[(1, 19213168), (2, 9606584), (4, 4803292), (8, 2401646), (13, 1477936), (16, 1200823), (26, 738968), (52, 369484), (71, 270608), (104, 184742), (142, 135304), (208, 92371), (284, 67652), (568, 33826), (923, 20816), (1136, 16913), (1301, 14768), (1846, 10408), (2602, 7384), (3692, 5204)]