21756045

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3319}}^1$

素因数の和:3369

約数の個数: 32

約数和(自身を含む): 38246400

約数和(自身を除く): 16490355

約数列:

[1, 3, 5, 15, 19, 23, 57, 69, 95, 115, 285, 345, 437, 1311, 2185, 3319, 6555, 9957, 16595, 49785, 63061, 76337, 189183, 229011, 315305, 381685, 945915, 1145055, 1450403, 4351209, 7252015, 21756045]

約数ペア:

[(1, 21756045), (3, 7252015), (5, 4351209), (15, 1450403), (19, 1145055), (23, 945915), (57, 381685), (69, 315305), (95, 229011), (115, 189183), (285, 76337), (345, 63061), (437, 49785), (1311, 16595), (2185, 9957), (3319, 6555)]