21000978345

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{60872401}}^1$

素因数の和:60872432

約数の個数: 16

約数和(自身を含む): 35062503552

約数和(自身を除く): 14061525207

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 60872401, 182617203, 304362005, 913086015, 1400065223, 4200195669, 7000326115, 21000978345]

約数ペア:

[(1, 21000978345), (3, 7000326115), (5, 4200195669), (15, 1400065223), (23, 913086015), (69, 304362005), (115, 182617203), (345, 60872401)]