19405473

素因数分解:

$3^1\times {\mathrm{31}}^2\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:245

約数の個数: 24

約数和(自身を含む): 27454464

約数和(自身を除く): 8048991

約数列:

[1, 3, 31, 53, 93, 127, 159, 381, 961, 1643, 2883, 3937, 4929, 6731, 11811, 20193, 50933, 122047, 152799, 208661, 366141, 625983, 6468491, 19405473]

約数ペア:

[(1, 19405473), (3, 6468491), (31, 625983), (53, 366141), (93, 208661), (127, 152799), (159, 122047), (381, 50933), (961, 20193), (1643, 11811), (2883, 6731), (3937, 4929)]