18191778

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:287

約数の個数: 64

約数和(自身を含む): 42508800

約数和(自身を除く): 24317022

約数列:

[1, 2, 3, 6, 11, 19, 22, 33, 38, 57, 66, 89, 114, 163, 178, 209, 267, 326, 418, 489, 534, 627, 978, 979, 1254, 1691, 1793, 1958, 2937, 3097, 3382, 3586, 5073, 5379, 5874, 6194, 9291, 10146, 10758, 14507, 18582, 18601, 29014, 34067, 37202, 43521, 55803, 68134, 87042, 102201, 111606, 159577, 204402, 275633, 319154, 478731, 551266, 826899, 957462, 1653798, 3031963, 6063926, 9095889, 18191778]

約数ペア:

[(1, 18191778), (2, 9095889), (3, 6063926), (6, 3031963), (11, 1653798), (19, 957462), (22, 826899), (33, 551266), (38, 478731), (57, 319154), (66, 275633), (89, 204402), (114, 159577), (163, 111606), (178, 102201), (209, 87042), (267, 68134), (326, 55803), (418, 43521), (489, 37202), (534, 34067), (627, 29014), (978, 18601), (979, 18582), (1254, 14507), (1691, 10758), (1793, 10146), (1958, 9291), (2937, 6194), (3097, 5874), (3382, 5379), (3586, 5073)]