218389284

素因数分解:

$2^2\times 3^4\times {\mathrm{821}}^2$

素因数の和:1658

約数の個数: 45

約数和(自身を含む): 571608961

約数和(自身を除く): 353219677

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 821, 1642, 2463, 3284, 4926, 7389, 9852, 14778, 22167, 29556, 44334, 66501, 88668, 133002, 266004, 674041, 1348082, 2022123, 2696164, 4044246, 6066369, 8088492, 12132738, 18199107, 24265476, 36398214, 54597321, 72796428, 109194642, 218389284]

約数ペア:

[(1, 218389284), (2, 109194642), (3, 72796428), (4, 54597321), (6, 36398214), (9, 24265476), (12, 18199107), (18, 12132738), (27, 8088492), (36, 6066369), (54, 4044246), (81, 2696164), (108, 2022123), (162, 1348082), (324, 674041), (821, 266004), (1642, 133002), (2463, 88668), (3284, 66501), (4926, 44334), (7389, 29556), (9852, 22167)]