21579530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 46545408

約数和(自身を除く): 24965878

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 73, 82, 103, 146, 205, 206, 287, 365, 410, 511, 515, 574, 721, 730, 1022, 1030, 1435, 1442, 2555, 2870, 2993, 3605, 4223, 5110, 5986, 7210, 7519, 8446, 14965, 15038, 20951, 21115, 29561, 29930, 37595, 41902, 42230, 52633, 59122, 75190, 104755, 105266, 147805, 209510, 263165, 295610, 308279, 526330, 616558, 1541395, 2157953, 3082790, 4315906, 10789765, 21579530]

約数ペア:

[(1, 21579530), (2, 10789765), (5, 4315906), (7, 3082790), (10, 2157953), (14, 1541395), (35, 616558), (41, 526330), (70, 308279), (73, 295610), (82, 263165), (103, 209510), (146, 147805), (205, 105266), (206, 104755), (287, 75190), (365, 59122), (410, 52633), (511, 42230), (515, 41902), (574, 37595), (721, 29930), (730, 29561), (1022, 21115), (1030, 20951), (1435, 15038), (1442, 14965), (2555, 8446), (2870, 7519), (2993, 7210), (3605, 5986), (4223, 5110)]