18859011

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 8719869

約数列:

[1, 3, 23, 37, 69, 83, 89, 111, 249, 267, 851, 1909, 2047, 2553, 3071, 3293, 5727, 6141, 7387, 9213, 9879, 22161, 70633, 75739, 169901, 211899, 227217, 273319, 509703, 819957, 6286337, 18859011]

約数ペア:

[(1, 18859011), (3, 6286337), (23, 819957), (37, 509703), (69, 273319), (83, 227217), (89, 211899), (111, 169901), (249, 75739), (267, 70633), (851, 22161), (1909, 9879), (2047, 9213), (2553, 7387), (3071, 6141), (3293, 5727)]