18949616

素因数分解:

$2^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2383}}^1$

素因数の和:2469

約数の個数: 40

約数和(自身を含む): 42568704

約数和(自身を除く): 23619088

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 71, 112, 142, 284, 497, 568, 994, 1136, 1988, 2383, 3976, 4766, 7952, 9532, 16681, 19064, 33362, 38128, 66724, 133448, 169193, 266896, 338386, 676772, 1184351, 1353544, 2368702, 2707088, 4737404, 9474808, 18949616]

約数ペア:

[(1, 18949616), (2, 9474808), (4, 4737404), (7, 2707088), (8, 2368702), (14, 1353544), (16, 1184351), (28, 676772), (56, 338386), (71, 266896), (112, 169193), (142, 133448), (284, 66724), (497, 38128), (568, 33362), (994, 19064), (1136, 16681), (1988, 9532), (2383, 7952), (3976, 4766)]