21355810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16057}}^1$

素因数の和:16090

約数の個数: 32

約数和(自身を含む): 46247040

約数和(自身を除く): 24891230

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 16057, 32114, 80285, 112399, 160570, 224798, 305083, 561995, 610166, 1123990, 1525415, 2135581, 3050830, 4271162, 10677905, 21355810]

約数ペア:

[(1, 21355810), (2, 10677905), (5, 4271162), (7, 3050830), (10, 2135581), (14, 1525415), (19, 1123990), (35, 610166), (38, 561995), (70, 305083), (95, 224798), (133, 160570), (190, 112399), (266, 80285), (665, 32114), (1330, 16057)]