21000985418

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{78951073}}^1$

素因数の和:78951101

約数の個数: 16

約数和(自身を含む): 37896515520

約数和(自身を除く): 16895530102

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 78951073, 157902146, 552657511, 1105315022, 1500070387, 3000140774, 10500492709, 21000985418]

約数ペア:

[(1, 21000985418), (2, 10500492709), (7, 3000140774), (14, 1500070387), (19, 1105315022), (38, 552657511), (133, 157902146), (266, 78951073)]