21102440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31033}}^1$

素因数の和:31061

約数の個数: 32

約数和(自身を含む): 50275080

約数和(自身を除く): 29172640

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 31033, 62066, 124132, 155165, 248264, 310330, 527561, 620660, 1055122, 1241320, 2110244, 2637805, 4220488, 5275610, 10551220, 21102440]

約数ペア:

[(1, 21102440), (2, 10551220), (4, 5275610), (5, 4220488), (8, 2637805), (10, 2110244), (17, 1241320), (20, 1055122), (34, 620660), (40, 527561), (68, 310330), (85, 248264), (136, 155165), (170, 124132), (340, 62066), (680, 31033)]