21495520810

素因数分解:

$2^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{9639247}}^1$

素因数の和:9639477

約数の個数: 16

約数和(自身を含む): 38865447936

約数和(自身を除く): 17369927126

約数列:

[1, 2, 5, 10, 223, 446, 1115, 2230, 9639247, 19278494, 48196235, 96392470, 2149552081, 4299104162, 10747760405, 21495520810]

約数ペア:

[(1, 21495520810), (2, 10747760405), (5, 4299104162), (10, 2149552081), (223, 96392470), (446, 48196235), (1115, 19278494), (2230, 9639247)]