21242019952

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{30875029}}^1$

素因数の和:30875080

約数の個数: 20

約数和(自身を含む): 42113540920

約数和(自身を除く): 20871520968

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 30875029, 61750058, 123500116, 247000232, 494000464, 1327626247, 2655252494, 5310504988, 10621009976, 21242019952]

約数ペア:

[(1, 21242019952), (2, 10621009976), (4, 5310504988), (8, 2655252494), (16, 1327626247), (43, 494000464), (86, 247000232), (172, 123500116), (344, 61750058), (688, 30875029)]