19708984

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{463}}^1$

素因数の和:799

約数の個数: 32

約数和(自身を含む): 39337920

約数和(自身を除く): 19628936

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 313, 463, 626, 926, 1252, 1852, 2504, 3704, 5321, 7871, 10642, 15742, 21284, 31484, 42568, 62968, 144919, 289838, 579676, 1159352, 2463623, 4927246, 9854492, 19708984]

約数ペア:

[(1, 19708984), (2, 9854492), (4, 4927246), (8, 2463623), (17, 1159352), (34, 579676), (68, 289838), (136, 144919), (313, 62968), (463, 42568), (626, 31484), (926, 21284), (1252, 15742), (1852, 10642), (2504, 7871), (3704, 5321)]