19402552

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{113}}^1\times {\mathrm{127}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 40055040

約数和(自身を除く): 20652488

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 113, 127, 169, 226, 254, 338, 452, 508, 676, 904, 1016, 1352, 1469, 1651, 2938, 3302, 5876, 6604, 11752, 13208, 14351, 19097, 21463, 28702, 38194, 42926, 57404, 76388, 85852, 114808, 152776, 171704, 186563, 373126, 746252, 1492504, 2425319, 4850638, 9701276, 19402552]

約数ペア:

[(1, 19402552), (2, 9701276), (4, 4850638), (8, 2425319), (13, 1492504), (26, 746252), (52, 373126), (104, 186563), (113, 171704), (127, 152776), (169, 114808), (226, 85852), (254, 76388), (338, 57404), (452, 42926), (508, 38194), (676, 28702), (904, 21463), (1016, 19097), (1352, 14351), (1469, 13208), (1651, 11752), (2938, 6604), (3302, 5876)]