201778857

素因数分解:

$3^4\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1489}}^1$

素因数の和:1747

約数の個数: 40

約数和(自身を含む): 346156800

約数和(自身を除く): 144377943

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 239, 567, 717, 1489, 1673, 2151, 4467, 5019, 6453, 10423, 13401, 15057, 19359, 31269, 40203, 45171, 93807, 120609, 135513, 281421, 355871, 844263, 1067613, 2491097, 3202839, 7473291, 9608517, 22419873, 28825551, 67259619, 201778857]

約数ペア:

[(1, 201778857), (3, 67259619), (7, 28825551), (9, 22419873), (21, 9608517), (27, 7473291), (63, 3202839), (81, 2491097), (189, 1067613), (239, 844263), (567, 355871), (717, 281421), (1489, 135513), (1673, 120609), (2151, 93807), (4467, 45171), (5019, 40203), (6453, 31269), (10423, 19359), (13401, 15057)]