20910298

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{191}}^1$

素因数の和:322

約数の個数: 32

約数和(自身を含む): 34467840

約数和(自身を除く): 13557542

約数列:

[1, 2, 19, 38, 43, 67, 86, 134, 191, 382, 817, 1273, 1634, 2546, 2881, 3629, 5762, 7258, 8213, 12797, 16426, 25594, 54739, 109478, 156047, 243143, 312094, 486286, 550271, 1100542, 10455149, 20910298]

約数ペア:

[(1, 20910298), (2, 10455149), (19, 1100542), (38, 550271), (43, 486286), (67, 312094), (86, 243143), (134, 156047), (191, 109478), (382, 54739), (817, 25594), (1273, 16426), (1634, 12797), (2546, 8213), (2881, 7258), (3629, 5762)]