21178098

素因数分解:

$2^1\times 3^4\times {\mathrm{130729}}^1$

素因数の和:130743

約数の個数: 20

約数和(自身を含む): 47454990

約数和(自身を除く): 26276892

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 130729, 261458, 392187, 784374, 1176561, 2353122, 3529683, 7059366, 10589049, 21178098]

約数ペア:

[(1, 21178098), (2, 10589049), (3, 7059366), (6, 3529683), (9, 2353122), (18, 1176561), (27, 784374), (54, 392187), (81, 261458), (162, 130729)]