220163517

素因数分解:

$3^2\times 7^2\times {\mathrm{127}}^1\times {\mathrm{3931}}^1$

素因数の和:4078

約数の個数: 36

約数和(自身を含む): 372942336

約数和(自身を除く): 152778819

約数列:

[1, 3, 7, 9, 21, 49, 63, 127, 147, 381, 441, 889, 1143, 2667, 3931, 6223, 8001, 11793, 18669, 27517, 35379, 56007, 82551, 192619, 247653, 499237, 577857, 1497711, 1733571, 3494659, 4493133, 10483977, 24462613, 31451931, 73387839, 220163517]

約数ペア:

[(1, 220163517), (3, 73387839), (7, 31451931), (9, 24462613), (21, 10483977), (49, 4493133), (63, 3494659), (127, 1733571), (147, 1497711), (381, 577857), (441, 499237), (889, 247653), (1143, 192619), (2667, 82551), (3931, 56007), (6223, 35379), (8001, 27517), (11793, 18669)]