19311831

素因数分解:

$3^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1327}}^1$

素因数の和:1361

約数の個数: 48

約数和(自身を含む): 36334080

約数和(自身を除く): 17022249

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 49, 63, 77, 99, 147, 189, 231, 297, 441, 539, 693, 1323, 1327, 1617, 2079, 3981, 4851, 9289, 11943, 14553, 14597, 27867, 35829, 43791, 65023, 83601, 102179, 131373, 195069, 250803, 306537, 394119, 585207, 715253, 919611, 1755621, 2145759, 2758833, 6437277, 19311831]

約数ペア:

[(1, 19311831), (3, 6437277), (7, 2758833), (9, 2145759), (11, 1755621), (21, 919611), (27, 715253), (33, 585207), (49, 394119), (63, 306537), (77, 250803), (99, 195069), (147, 131373), (189, 102179), (231, 83601), (297, 65023), (441, 43791), (539, 35829), (693, 27867), (1323, 14597), (1327, 14553), (1617, 11943), (2079, 9289), (3981, 4851)]