21011300

素因数分解:

$2^2\times 5^2\times {\mathrm{210113}}^1$

素因数の和:210127

約数の個数: 18

約数和(自身を含む): 45594738

約数和(自身を除く): 24583438

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 210113, 420226, 840452, 1050565, 2101130, 4202260, 5252825, 10505650, 21011300]

約数ペア:

[(1, 21011300), (2, 10505650), (4, 5252825), (5, 4202260), (10, 2101130), (20, 1050565), (25, 840452), (50, 420226), (100, 210113)]