217654317

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{443}}^1\times {\mathrm{587}}^1$

素因数の和:1070

約数の個数: 32

約数和(自身を含む): 334172160

約数和(自身を除く): 116517843

約数列:

[1, 3, 9, 27, 31, 93, 279, 443, 587, 837, 1329, 1761, 3987, 5283, 11961, 13733, 15849, 18197, 41199, 54591, 123597, 163773, 260041, 370791, 491319, 780123, 2340369, 7021107, 8061271, 24183813, 72551439, 217654317]

約数ペア:

[(1, 217654317), (3, 72551439), (9, 24183813), (27, 8061271), (31, 7021107), (93, 2340369), (279, 780123), (443, 491319), (587, 370791), (837, 260041), (1329, 163773), (1761, 123597), (3987, 54591), (5283, 41199), (11961, 18197), (13733, 15849)]