21897018

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:260

約数の個数: 96

約数和(自身を含む): 57238272

約数和(自身を除く): 35341254

約数列:

[1, 2, 3, 6, 9, 11, 13, 18, 22, 26, 33, 39, 47, 66, 78, 94, 99, 117, 141, 143, 181, 198, 234, 282, 286, 362, 423, 429, 517, 543, 611, 846, 858, 1034, 1086, 1222, 1287, 1551, 1629, 1833, 1991, 2353, 2574, 3102, 3258, 3666, 3982, 4653, 4706, 5499, 5973, 6721, 7059, 8507, 9306, 10998, 11946, 13442, 14118, 17014, 17919, 20163, 21177, 25521, 25883, 35838, 40326, 42354, 51042, 51766, 60489, 76563, 77649, 93577, 110591, 120978, 153126, 155298, 187154, 221182, 232947, 280731, 331773, 465894, 561462, 663546, 842193, 995319, 1216501, 1684386, 1990638, 2433002, 3649503, 7299006, 10948509, 21897018]

約数ペア:

[(1, 21897018), (2, 10948509), (3, 7299006), (6, 3649503), (9, 2433002), (11, 1990638), (13, 1684386), (18, 1216501), (22, 995319), (26, 842193), (33, 663546), (39, 561462), (47, 465894), (66, 331773), (78, 280731), (94, 232947), (99, 221182), (117, 187154), (141, 155298), (143, 153126), (181, 120978), (198, 110591), (234, 93577), (282, 77649), (286, 76563), (362, 60489), (423, 51766), (429, 51042), (517, 42354), (543, 40326), (611, 35838), (846, 25883), (858, 25521), (1034, 21177), (1086, 20163), (1222, 17919), (1287, 17014), (1551, 14118), (1629, 13442), (1833, 11946), (1991, 10998), (2353, 9306), (2574, 8507), (3102, 7059), (3258, 6721), (3666, 5973), (3982, 5499), (4653, 4706)]