18967792

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1$

素因数の和:421

約数の個数: 40

約数和(自身を含む): 38033280

約数和(自身を除く): 19065488

約数列:

[1, 2, 4, 8, 16, 59, 71, 118, 142, 236, 283, 284, 472, 566, 568, 944, 1132, 1136, 2264, 4189, 4528, 8378, 16697, 16756, 20093, 33394, 33512, 40186, 66788, 67024, 80372, 133576, 160744, 267152, 321488, 1185487, 2370974, 4741948, 9483896, 18967792]

約数ペア:

[(1, 18967792), (2, 9483896), (4, 4741948), (8, 2370974), (16, 1185487), (59, 321488), (71, 267152), (118, 160744), (142, 133576), (236, 80372), (283, 67024), (284, 66788), (472, 40186), (566, 33512), (568, 33394), (944, 20093), (1132, 16756), (1136, 16697), (2264, 8378), (4189, 4528)]