20946968

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19687}}^1$

素因数の和:19719

約数の個数: 32

約数和(自身を含む): 47251200

約数和(自身を除く): 26304232

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 19687, 39374, 78748, 137809, 157496, 275618, 374053, 551236, 748106, 1102472, 1496212, 2618371, 2992424, 5236742, 10473484, 20946968]

約数ペア:

[(1, 20946968), (2, 10473484), (4, 5236742), (7, 2992424), (8, 2618371), (14, 1496212), (19, 1102472), (28, 748106), (38, 551236), (56, 374053), (76, 275618), (133, 157496), (152, 137809), (266, 78748), (532, 39374), (1064, 19687)]