19518412

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{503}}^1$

素因数の和:705

約数の個数: 24

約数和(自身を含む): 34927200

約数和(自身を除く): 15408788

約数列:

[1, 2, 4, 89, 109, 178, 218, 356, 436, 503, 1006, 2012, 9701, 19402, 38804, 44767, 54827, 89534, 109654, 179068, 219308, 4879603, 9759206, 19518412]

約数ペア:

[(1, 19518412), (2, 9759206), (4, 4879603), (89, 219308), (109, 179068), (178, 109654), (218, 89534), (356, 54827), (436, 44767), (503, 38804), (1006, 19402), (2012, 9701)]