18946516

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{313}}^1\times {\mathrm{409}}^1$

素因数の和:763

約数の個数: 24

約数和(自身を含む): 34244840

約数和(自身を除く): 15298324

約数列:

[1, 2, 4, 37, 74, 148, 313, 409, 626, 818, 1252, 1636, 11581, 15133, 23162, 30266, 46324, 60532, 128017, 256034, 512068, 4736629, 9473258, 18946516]

約数ペア:

[(1, 18946516), (2, 9473258), (4, 4736629), (37, 512068), (74, 256034), (148, 128017), (313, 60532), (409, 46324), (626, 30266), (818, 23162), (1252, 15133), (1636, 11581)]