21100940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{150721}}^1$

素因数の和:150737

約数の個数: 24

約数和(自身を含む): 50642592

約数和(自身を除く): 29541652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 150721, 301442, 602884, 753605, 1055047, 1507210, 2110094, 3014420, 4220188, 5275235, 10550470, 21100940]

約数ペア:

[(1, 21100940), (2, 10550470), (4, 5275235), (5, 4220188), (7, 3014420), (10, 2110094), (14, 1507210), (20, 1055047), (28, 753605), (35, 602884), (70, 301442), (140, 150721)]