217223331

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{6971}}^1$

素因数の和:7051

約数の個数: 32

約数和(自身を含む): 337333248

約数和(自身を除く): 120109917

約数列:

[1, 3, 13, 17, 39, 47, 51, 141, 221, 611, 663, 799, 1833, 2397, 6971, 10387, 20913, 31161, 90623, 118507, 271869, 327637, 355521, 982911, 1540591, 4259281, 4621773, 5569829, 12777843, 16709487, 72407777, 217223331]

約数ペア:

[(1, 217223331), (3, 72407777), (13, 16709487), (17, 12777843), (39, 5569829), (47, 4621773), (51, 4259281), (141, 1540591), (221, 982911), (611, 355521), (663, 327637), (799, 271869), (1833, 118507), (2397, 90623), (6971, 31161), (10387, 20913)]