19487084

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 37699200

約数和(自身を除く): 18212116

約数列:

[1, 2, 4, 19, 38, 43, 67, 76, 86, 89, 134, 172, 178, 268, 356, 817, 1273, 1634, 1691, 2546, 2881, 3268, 3382, 3827, 5092, 5762, 5963, 6764, 7654, 11524, 11926, 15308, 23852, 54739, 72713, 109478, 113297, 145426, 218956, 226594, 256409, 290852, 453188, 512818, 1025636, 4871771, 9743542, 19487084]

約数ペア:

[(1, 19487084), (2, 9743542), (4, 4871771), (19, 1025636), (38, 512818), (43, 453188), (67, 290852), (76, 256409), (86, 226594), (89, 218956), (134, 145426), (172, 113297), (178, 109478), (268, 72713), (356, 54739), (817, 23852), (1273, 15308), (1634, 11926), (1691, 11524), (2546, 7654), (2881, 6764), (3268, 5963), (3382, 5762), (3827, 5092)]