20999318

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{773}}^1$

素因数の和:856

約数の個数: 24

約数和(自身を含む): 34216992

約数和(自身を除く): 13217674

約数列:

[1, 2, 17, 34, 47, 94, 289, 578, 773, 799, 1546, 1598, 13141, 13583, 26282, 27166, 36331, 72662, 223397, 446794, 617627, 1235254, 10499659, 20999318]

約数ペア:

[(1, 20999318), (2, 10499659), (17, 1235254), (34, 617627), (47, 446794), (94, 223397), (289, 72662), (578, 36331), (773, 27166), (799, 26282), (1546, 13583), (1598, 13141)]