20414888

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2689}}^1$

素因数の和:2781

約数の個数: 32

約数和(自身を含む): 41802600

約数和(自身を除く): 21387712

約数列:

[1, 2, 4, 8, 13, 26, 52, 73, 104, 146, 292, 584, 949, 1898, 2689, 3796, 5378, 7592, 10756, 21512, 34957, 69914, 139828, 196297, 279656, 392594, 785188, 1570376, 2551861, 5103722, 10207444, 20414888]

約数ペア:

[(1, 20414888), (2, 10207444), (4, 5103722), (8, 2551861), (13, 1570376), (26, 785188), (52, 392594), (73, 279656), (104, 196297), (146, 139828), (292, 69914), (584, 34957), (949, 21512), (1898, 10756), (2689, 7592), (3796, 5378)]