21457570

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{1117}}^1$

素因数の和:1254

約数の個数: 32

約数和(自身を含む): 41294448

約数和(自身を除く): 19836878

約数列:

[1, 2, 5, 10, 17, 34, 85, 113, 170, 226, 565, 1117, 1130, 1921, 2234, 3842, 5585, 9605, 11170, 18989, 19210, 37978, 94945, 126221, 189890, 252442, 631105, 1262210, 2145757, 4291514, 10728785, 21457570]

約数ペア:

[(1, 21457570), (2, 10728785), (5, 4291514), (10, 2145757), (17, 1262210), (34, 631105), (85, 252442), (113, 189890), (170, 126221), (226, 94945), (565, 37978), (1117, 19210), (1130, 18989), (1921, 11170), (2234, 9605), (3842, 5585)]