18916005

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{54829}}^1$

素因数の和:54860

約数の個数: 16

約数和(自身を含む): 31582080

約数和(自身を除く): 12666075

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 54829, 164487, 274145, 822435, 1261067, 3783201, 6305335, 18916005]

約数ペア:

[(1, 18916005), (3, 6305335), (5, 3783201), (15, 1261067), (23, 822435), (69, 274145), (115, 164487), (345, 54829)]