19645519

素因数分解:

${\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:398

約数の個数: 16

約数和(自身を含む): 21337344

約数和(自身を除く): 1691825

約数列:

[1, 23, 41, 83, 251, 943, 1909, 3403, 5773, 10291, 20833, 78269, 236693, 479159, 854153, 19645519]

約数ペア:

[(1, 19645519), (23, 854153), (41, 479159), (83, 236693), (251, 78269), (943, 20833), (1909, 10291), (3403, 5773)]