720974793

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{20947}}^1$

素因数の和:21117

約数の個数: 32

約数和(自身を含む): 1206604800

約数和(自身を除く): 485630007

約数列:

[1, 3, 7, 11, 21, 33, 77, 149, 231, 447, 1043, 1639, 3129, 4917, 11473, 20947, 34419, 62841, 146629, 230417, 439887, 691251, 1612919, 3121103, 4838757, 9363309, 21847721, 34332133, 65543163, 102996399, 240324931, 720974793]

約数ペア:

[(1, 720974793), (3, 240324931), (7, 102996399), (11, 65543163), (21, 34332133), (33, 21847721), (77, 9363309), (149, 4838757), (231, 3121103), (447, 1612919), (1043, 691251), (1639, 439887), (3129, 230417), (4917, 146629), (11473, 62841), (20947, 34419)]