21011540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{95507}}^1$

素因数の和:95527

約数の個数: 24

約数和(自身を含む): 48136032

約数和(自身を除く): 27124492

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 95507, 191014, 382028, 477535, 955070, 1050577, 1910140, 2101154, 4202308, 5252885, 10505770, 21011540]

約数ペア:

[(1, 21011540), (2, 10505770), (4, 5252885), (5, 4202308), (10, 2101154), (11, 1910140), (20, 1050577), (22, 955070), (44, 477535), (55, 382028), (110, 191014), (220, 95507)]