19726924

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{9923}}^1$

素因数の和:10005

約数の個数: 24

約数和(自身を含む): 40013568

約数和(自身を除く): 20286644

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 9923, 19846, 39692, 69461, 138922, 277844, 704533, 1409066, 2818132, 4931731, 9863462, 19726924]

約数ペア:

[(1, 19726924), (2, 9863462), (4, 4931731), (7, 2818132), (14, 1409066), (28, 704533), (71, 277844), (142, 138922), (284, 69461), (497, 39692), (994, 19846), (1988, 9923)]