21047896

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{2347}}^1$

素因数の和:2431

約数の個数: 32

約数和(自身を含む): 42264000

約数和(自身を除く): 21216104

約数列:

[1, 2, 4, 8, 19, 38, 59, 76, 118, 152, 236, 472, 1121, 2242, 2347, 4484, 4694, 8968, 9388, 18776, 44593, 89186, 138473, 178372, 276946, 356744, 553892, 1107784, 2630987, 5261974, 10523948, 21047896]

約数ペア:

[(1, 21047896), (2, 10523948), (4, 5261974), (8, 2630987), (19, 1107784), (38, 553892), (59, 356744), (76, 276946), (118, 178372), (152, 138473), (236, 89186), (472, 44593), (1121, 18776), (2242, 9388), (2347, 8968), (4484, 4694)]