81102021

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{239}}^1$

素因数の和:386

約数の個数: 64

約数和(自身を含む): 147087360

約数和(自身を除く): 65985339

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 113, 143, 231, 239, 273, 339, 429, 717, 791, 1001, 1243, 1469, 1673, 2373, 2629, 3003, 3107, 3729, 4407, 5019, 7887, 8701, 9321, 10283, 16159, 18403, 21749, 26103, 27007, 30849, 34177, 48477, 55209, 65247, 81021, 102531, 113113, 189049, 239239, 297077, 339339, 351091, 567147, 717717, 891231, 1053273, 2079539, 2457637, 3862001, 6238617, 7372911, 11586003, 27034007, 81102021]

約数ペア:

[(1, 81102021), (3, 27034007), (7, 11586003), (11, 7372911), (13, 6238617), (21, 3862001), (33, 2457637), (39, 2079539), (77, 1053273), (91, 891231), (113, 717717), (143, 567147), (231, 351091), (239, 339339), (273, 297077), (339, 239239), (429, 189049), (717, 113113), (791, 102531), (1001, 81021), (1243, 65247), (1469, 55209), (1673, 48477), (2373, 34177), (2629, 30849), (3003, 27007), (3107, 26103), (3729, 21749), (4407, 18403), (5019, 16159), (7887, 10283), (8701, 9321)]