19311237

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:311

約数の個数: 48

約数和(自身を含む): 32941440

約数和(自身を除く): 13630203

約数列:

[1, 3, 9, 11, 23, 27, 33, 69, 99, 121, 207, 253, 257, 297, 363, 621, 759, 771, 1089, 2277, 2313, 2783, 2827, 3267, 5911, 6831, 6939, 8349, 8481, 17733, 25047, 25443, 31097, 53199, 65021, 75141, 76329, 93291, 159597, 195063, 279873, 585189, 715231, 839619, 1755567, 2145693, 6437079, 19311237]

約数ペア:

[(1, 19311237), (3, 6437079), (9, 2145693), (11, 1755567), (23, 839619), (27, 715231), (33, 585189), (69, 279873), (99, 195063), (121, 159597), (207, 93291), (253, 76329), (257, 75141), (297, 65021), (363, 53199), (621, 31097), (759, 25443), (771, 25047), (1089, 17733), (2277, 8481), (2313, 8349), (2783, 6939), (2827, 6831), (3267, 5911)]