20895984

素因数分解:

$2^4\times 3^2\times {\mathrm{31}}^2\times {\mathrm{151}}^1$

素因数の和:227

約数の個数: 90

約数和(自身を含む): 60827208

約数和(自身を除く): 39931224

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 36, 48, 62, 72, 93, 124, 144, 151, 186, 248, 279, 302, 372, 453, 496, 558, 604, 744, 906, 961, 1116, 1208, 1359, 1488, 1812, 1922, 2232, 2416, 2718, 2883, 3624, 3844, 4464, 4681, 5436, 5766, 7248, 7688, 8649, 9362, 10872, 11532, 14043, 15376, 17298, 18724, 21744, 23064, 28086, 34596, 37448, 42129, 46128, 56172, 69192, 74896, 84258, 112344, 138384, 145111, 168516, 224688, 290222, 337032, 435333, 580444, 674064, 870666, 1160888, 1305999, 1741332, 2321776, 2611998, 3482664, 5223996, 6965328, 10447992, 20895984]

約数ペア:

[(1, 20895984), (2, 10447992), (3, 6965328), (4, 5223996), (6, 3482664), (8, 2611998), (9, 2321776), (12, 1741332), (16, 1305999), (18, 1160888), (24, 870666), (31, 674064), (36, 580444), (48, 435333), (62, 337032), (72, 290222), (93, 224688), (124, 168516), (144, 145111), (151, 138384), (186, 112344), (248, 84258), (279, 74896), (302, 69192), (372, 56172), (453, 46128), (496, 42129), (558, 37448), (604, 34596), (744, 28086), (906, 23064), (961, 21744), (1116, 18724), (1208, 17298), (1359, 15376), (1488, 14043), (1812, 11532), (1922, 10872), (2232, 9362), (2416, 8649), (2718, 7688), (2883, 7248), (3624, 5766), (3844, 5436), (4464, 4681)]