21000655210

素因数分解:

$2^1\times 5^1\times {\mathrm{1087}}^1\times {\mathrm{1931983}}^1$

素因数の和:1933077

約数の個数: 16

約数和(自身を含む): 37835974656

約数和(自身を除く): 16835319446

約数列:

[1, 2, 5, 10, 1087, 2174, 5435, 10870, 1931983, 3863966, 9659915, 19319830, 2100065521, 4200131042, 10500327605, 21000655210]

約数ペア:

[(1, 21000655210), (2, 10500327605), (5, 4200131042), (10, 2100065521), (1087, 19319830), (2174, 9659915), (5435, 3863966), (10870, 1931983)]