19454992

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{631}}^1$

素因数の和:727

約数の個数: 40

約数和(自身を含む): 39497472

約数和(自身を除く): 20042480

約数列:

[1, 2, 4, 8, 16, 41, 47, 82, 94, 164, 188, 328, 376, 631, 656, 752, 1262, 1927, 2524, 3854, 5048, 7708, 10096, 15416, 25871, 29657, 30832, 51742, 59314, 103484, 118628, 206968, 237256, 413936, 474512, 1215937, 2431874, 4863748, 9727496, 19454992]

約数ペア:

[(1, 19454992), (2, 9727496), (4, 4863748), (8, 2431874), (16, 1215937), (41, 474512), (47, 413936), (82, 237256), (94, 206968), (164, 118628), (188, 103484), (328, 59314), (376, 51742), (631, 30832), (656, 29657), (752, 25871), (1262, 15416), (1927, 10096), (2524, 7708), (3854, 5048)]