21782360

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28661}}^1$

素因数の和:28691

約数の個数: 32

約数和(自身を含む): 51591600

約数和(自身を除く): 29809240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 28661, 57322, 114644, 143305, 229288, 286610, 544559, 573220, 1089118, 1146440, 2178236, 2722795, 4356472, 5445590, 10891180, 21782360]

約数ペア:

[(1, 21782360), (2, 10891180), (4, 5445590), (5, 4356472), (8, 2722795), (10, 2178236), (19, 1146440), (20, 1089118), (38, 573220), (40, 544559), (76, 286610), (95, 229288), (152, 143305), (190, 114644), (380, 57322), (760, 28661)]