890221857

素因数分解:

$3^1\times 7^3\times {\mathrm{109}}^1\times {\mathrm{7937}}^1$

素因数の和:8070

約数の個数: 32

約数和(自身を含む): 1397088000

約数和(自身を除く): 506866143

約数列:

[1, 3, 7, 21, 49, 109, 147, 327, 343, 763, 1029, 2289, 5341, 7937, 16023, 23811, 37387, 55559, 112161, 166677, 388913, 865133, 1166739, 2595399, 2722391, 6055931, 8167173, 18167793, 42391517, 127174551, 296740619, 890221857]

約数ペア:

[(1, 890221857), (3, 296740619), (7, 127174551), (21, 42391517), (49, 18167793), (109, 8167173), (147, 6055931), (327, 2722391), (343, 2595399), (763, 1166739), (1029, 865133), (2289, 388913), (5341, 166677), (7937, 112161), (16023, 55559), (23811, 37387)]