21342616

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{1129}}^1$

素因数の和:1291

約数の個数: 32

約数和(自身を含む): 42714000

約数和(自身を除く): 21371384

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 139, 278, 556, 1112, 1129, 2258, 2363, 4516, 4726, 9032, 9452, 18904, 19193, 38386, 76772, 153544, 156931, 313862, 627724, 1255448, 2667827, 5335654, 10671308, 21342616]

約数ペア:

[(1, 21342616), (2, 10671308), (4, 5335654), (8, 2667827), (17, 1255448), (34, 627724), (68, 313862), (136, 156931), (139, 153544), (278, 76772), (556, 38386), (1112, 19193), (1129, 18904), (2258, 9452), (2363, 9032), (4516, 4726)]