206561215

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{27197}}^1$

素因数の和:27247

約数の個数: 24

約数和(自身を含む): 297654912

約数和(自身を除く): 91093697

約数列:

[1, 5, 7, 31, 35, 49, 155, 217, 245, 1085, 1519, 7595, 27197, 135985, 190379, 843107, 951895, 1332653, 4215535, 5901749, 6663265, 29508745, 41312243, 206561215]

約数ペア:

[(1, 206561215), (5, 41312243), (7, 29508745), (31, 6663265), (35, 5901749), (49, 4215535), (155, 1332653), (217, 951895), (245, 843107), (1085, 190379), (1519, 135985), (7595, 27197)]