20921963915

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{2982461}}^1$

素因数の和:2982550

約数の個数: 16

約数和(自身を含む): 26627420736

約数和(自身を除く): 5705456821

約数列:

[1, 5, 23, 61, 115, 305, 1403, 7015, 2982461, 14912305, 68596603, 181930121, 342983015, 909650605, 4184392783, 20921963915]

約数ペア:

[(1, 20921963915), (5, 4184392783), (23, 909650605), (61, 342983015), (115, 181930121), (305, 68596603), (1403, 14912305), (7015, 2982461)]