21953030

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{18143}}^1$

素因数の和:18172

約数の個数: 24

約数和(自身を含む): 43436736

約数和(自身を除く): 21483706

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 18143, 36286, 90715, 181430, 199573, 399146, 997865, 1995730, 2195303, 4390606, 10976515, 21953030]

約数ペア:

[(1, 21953030), (2, 10976515), (5, 4390606), (10, 2195303), (11, 1995730), (22, 997865), (55, 399146), (110, 199573), (121, 181430), (242, 90715), (605, 36286), (1210, 18143)]