19851392

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{613}}^1$

素因数の和:661

約数の個数: 64

約数和(自身を含む): 45092160

約数和(自身を除く): 25240768

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 32, 44, 46, 64, 88, 92, 128, 176, 184, 253, 352, 368, 506, 613, 704, 736, 1012, 1226, 1408, 1472, 2024, 2452, 2944, 4048, 4904, 6743, 8096, 9808, 13486, 14099, 16192, 19616, 26972, 28198, 32384, 39232, 53944, 56396, 78464, 107888, 112792, 155089, 215776, 225584, 310178, 431552, 451168, 620356, 863104, 902336, 1240712, 1804672, 2481424, 4962848, 9925696, 19851392]

約数ペア:

[(1, 19851392), (2, 9925696), (4, 4962848), (8, 2481424), (11, 1804672), (16, 1240712), (22, 902336), (23, 863104), (32, 620356), (44, 451168), (46, 431552), (64, 310178), (88, 225584), (92, 215776), (128, 155089), (176, 112792), (184, 107888), (253, 78464), (352, 56396), (368, 53944), (506, 39232), (613, 32384), (704, 28198), (736, 26972), (1012, 19616), (1226, 16192), (1408, 14099), (1472, 13486), (2024, 9808), (2452, 8096), (2944, 6743), (4048, 4904)]