28750221

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:283

約数の個数: 40

約数和(自身を含む): 45189144

約数和(自身を除く): 16438923

約数列:

[1, 3, 9, 27, 37, 53, 81, 111, 159, 181, 333, 477, 543, 999, 1431, 1629, 1961, 2997, 4293, 4887, 5883, 6697, 9593, 14661, 17649, 20091, 28779, 52947, 60273, 86337, 158841, 180819, 259011, 354941, 542457, 777033, 1064823, 3194469, 9583407, 28750221]

約数ペア:

[(1, 28750221), (3, 9583407), (9, 3194469), (27, 1064823), (37, 777033), (53, 542457), (81, 354941), (111, 259011), (159, 180819), (181, 158841), (333, 86337), (477, 60273), (543, 52947), (999, 28779), (1431, 20091), (1629, 17649), (1961, 14661), (2997, 9593), (4293, 6697), (4887, 5883)]