19735696

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{277}}^1$

素因数の和:419

約数の個数: 40

約数和(自身を含む): 39539384

約数和(自身を除く): 19803688

約数列:

[1, 2, 4, 8, 16, 61, 73, 122, 146, 244, 277, 292, 488, 554, 584, 976, 1108, 1168, 2216, 4432, 4453, 8906, 16897, 17812, 20221, 33794, 35624, 40442, 67588, 71248, 80884, 135176, 161768, 270352, 323536, 1233481, 2466962, 4933924, 9867848, 19735696]

約数ペア:

[(1, 19735696), (2, 9867848), (4, 4933924), (8, 2466962), (16, 1233481), (61, 323536), (73, 270352), (122, 161768), (146, 135176), (244, 80884), (277, 71248), (292, 67588), (488, 40442), (554, 35624), (584, 33794), (976, 20221), (1108, 17812), (1168, 16897), (2216, 8906), (4432, 4453)]