19856837

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{239}}^1$

素因数の和:353

約数の個数: 32

約数和(自身を含む): 27095040

約数和(自身を除く): 7238203

約数列:

[1, 7, 11, 13, 77, 83, 91, 143, 239, 581, 913, 1001, 1079, 1673, 2629, 3107, 6391, 7553, 11869, 18403, 19837, 21749, 34177, 83083, 138859, 218207, 239239, 257881, 1527449, 1805167, 2836691, 19856837]

約数ペア:

[(1, 19856837), (7, 2836691), (11, 1805167), (13, 1527449), (77, 257881), (83, 239239), (91, 218207), (143, 138859), (239, 83083), (581, 34177), (913, 21749), (1001, 19837), (1079, 18403), (1673, 11869), (2629, 7553), (3107, 6391)]