21408858

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1061}}^1$

素因数の和:1147

約数の個数: 48

約数和(自身を含む): 49701600

約数和(自身を除く): 28292742

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 59, 114, 118, 171, 177, 342, 354, 531, 1061, 1062, 1121, 2122, 2242, 3183, 3363, 6366, 6726, 9549, 10089, 19098, 20159, 20178, 40318, 60477, 62599, 120954, 125198, 181431, 187797, 362862, 375594, 563391, 1126782, 1189381, 2378762, 3568143, 7136286, 10704429, 21408858]

約数ペア:

[(1, 21408858), (2, 10704429), (3, 7136286), (6, 3568143), (9, 2378762), (18, 1189381), (19, 1126782), (38, 563391), (57, 375594), (59, 362862), (114, 187797), (118, 181431), (171, 125198), (177, 120954), (342, 62599), (354, 60477), (531, 40318), (1061, 20178), (1062, 20159), (1121, 19098), (2122, 10089), (2242, 9549), (3183, 6726), (3363, 6366)]