20689544

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{1021}}^1$

素因数の和:1193

約数の個数: 32

約数和(自身を含む): 41391000

約数和(自身を除く): 20701456

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 149, 298, 596, 1021, 1192, 2042, 2533, 4084, 5066, 8168, 10132, 17357, 20264, 34714, 69428, 138856, 152129, 304258, 608516, 1217032, 2586193, 5172386, 10344772, 20689544]

約数ペア:

[(1, 20689544), (2, 10344772), (4, 5172386), (8, 2586193), (17, 1217032), (34, 608516), (68, 304258), (136, 152129), (149, 138856), (298, 69428), (596, 34714), (1021, 20264), (1192, 17357), (2042, 10132), (2533, 8168), (4084, 5066)]