21207142100

素因数分解:

$2^2\times 5^2\times {\mathrm{569}}^1\times {\mathrm{372709}}^1$

素因数の和:373292

約数の個数: 36

約数和(自身を含む): 46100499900

約数和(自身を除く): 24893357800

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 569, 1138, 2276, 2845, 5690, 11380, 14225, 28450, 56900, 372709, 745418, 1490836, 1863545, 3727090, 7454180, 9317725, 18635450, 37270900, 212071421, 424142842, 848285684, 1060357105, 2120714210, 4241428420, 5301785525, 10603571050, 21207142100]

約数ペア:

[(1, 21207142100), (2, 10603571050), (4, 5301785525), (5, 4241428420), (10, 2120714210), (20, 1060357105), (25, 848285684), (50, 424142842), (100, 212071421), (569, 37270900), (1138, 18635450), (2276, 9317725), (2845, 7454180), (5690, 3727090), (11380, 1863545), (14225, 1490836), (28450, 745418), (56900, 372709)]