21465884

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{44351}}^1$

素因数の和:44377

約数の個数: 18

約数和(自身を含む): 41291712

約数和(自身を除く): 19825828

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 44351, 88702, 177404, 487861, 975722, 1951444, 5366471, 10732942, 21465884]

約数ペア:

[(1, 21465884), (2, 10732942), (4, 5366471), (11, 1951444), (22, 975722), (44, 487861), (121, 177404), (242, 88702), (484, 44351)]