21794157

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{953}}^1$

素因数の和:991

約数の個数: 48

約数和(自身を含む): 40602240

約数和(自身を除く): 18808083

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 121, 189, 231, 297, 363, 693, 847, 953, 1089, 2079, 2541, 2859, 3267, 6671, 7623, 8577, 10483, 20013, 22869, 25731, 31449, 60039, 73381, 94347, 115313, 180117, 220143, 283041, 345939, 660429, 807191, 1037817, 1981287, 2421573, 3113451, 7264719, 21794157]

約数ペア:

[(1, 21794157), (3, 7264719), (7, 3113451), (9, 2421573), (11, 1981287), (21, 1037817), (27, 807191), (33, 660429), (63, 345939), (77, 283041), (99, 220143), (121, 180117), (189, 115313), (231, 94347), (297, 73381), (363, 60039), (693, 31449), (847, 25731), (953, 22869), (1089, 20013), (2079, 10483), (2541, 8577), (2859, 7623), (3267, 6671)]