21555306

素因数分解:

$2^1\times 3^2\times {\mathrm{137}}^1\times {\mathrm{8741}}^1$

素因数の和:8886

約数の個数: 24

約数和(自身を含む): 47049444

約数和(自身を除く): 25494138

約数列:

[1, 2, 3, 6, 9, 18, 137, 274, 411, 822, 1233, 2466, 8741, 17482, 26223, 52446, 78669, 157338, 1197517, 2395034, 3592551, 7185102, 10777653, 21555306]

約数ペア:

[(1, 21555306), (2, 10777653), (3, 7185102), (6, 3592551), (9, 2395034), (18, 1197517), (137, 157338), (274, 78669), (411, 52446), (822, 26223), (1233, 17482), (2466, 8741)]