21789172

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{5431}}^1$

素因数の和:5511

約数の個数: 24

約数和(自身を含む): 41065920

約数和(自身を除く): 19276748

約数列:

[1, 2, 4, 17, 34, 59, 68, 118, 236, 1003, 2006, 4012, 5431, 10862, 21724, 92327, 184654, 320429, 369308, 640858, 1281716, 5447293, 10894586, 21789172]

約数ペア:

[(1, 21789172), (2, 10894586), (4, 5447293), (17, 1281716), (34, 640858), (59, 369308), (68, 320429), (118, 184654), (236, 92327), (1003, 21724), (2006, 10862), (4012, 5431)]