21781186272

素因数分解:

$2^5\times 3^2\times {\mathrm{31}}^1\times {\mathrm{2439649}}^1$

素因数の和:2439696

約数の個数: 72

約数和(自身を含む): 63938347200

約数和(自身を除く): 42157160928

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 48, 62, 72, 93, 96, 124, 144, 186, 248, 279, 288, 372, 496, 558, 744, 992, 1116, 1488, 2232, 2976, 4464, 8928, 2439649, 4879298, 7318947, 9758596, 14637894, 19517192, 21956841, 29275788, 39034384, 43913682, 58551576, 75629119, 78068768, 87827364, 117103152, 151258238, 175654728, 226887357, 234206304, 302516476, 351309456, 453774714, 605032952, 680662071, 702618912, 907549428, 1210065904, 1361324142, 1815098856, 2420131808, 2722648284, 3630197712, 5445296568, 7260395424, 10890593136, 21781186272]

約数ペア:

[(1, 21781186272), (2, 10890593136), (3, 7260395424), (4, 5445296568), (6, 3630197712), (8, 2722648284), (9, 2420131808), (12, 1815098856), (16, 1361324142), (18, 1210065904), (24, 907549428), (31, 702618912), (32, 680662071), (36, 605032952), (48, 453774714), (62, 351309456), (72, 302516476), (93, 234206304), (96, 226887357), (124, 175654728), (144, 151258238), (186, 117103152), (248, 87827364), (279, 78068768), (288, 75629119), (372, 58551576), (496, 43913682), (558, 39034384), (744, 29275788), (992, 21956841), (1116, 19517192), (1488, 14637894), (2232, 9758596), (2976, 7318947), (4464, 4879298), (8928, 2439649)]