18911313

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{10151}}^1$

素因数の和:10186

約数の個数: 20

約数和(自身を含む): 29481408

約数和(自身を除く): 10570095

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 10151, 30453, 91359, 233473, 274077, 700419, 822231, 2101257, 6303771, 18911313]

約数ペア:

[(1, 18911313), (3, 6303771), (9, 2101257), (23, 822231), (27, 700419), (69, 274077), (81, 233473), (207, 91359), (621, 30453), (1863, 10151)]