20983968

素因数分解:

$2^5\times 3^3\times {\mathrm{149}}^1\times {\mathrm{163}}^1$

素因数の和:331

約数の個数: 96

約数和(自身を含む): 61992000

約数和(自身を除く): 41008032

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 96, 108, 144, 149, 163, 216, 288, 298, 326, 432, 447, 489, 596, 652, 864, 894, 978, 1192, 1304, 1341, 1467, 1788, 1956, 2384, 2608, 2682, 2934, 3576, 3912, 4023, 4401, 4768, 5216, 5364, 5868, 7152, 7824, 8046, 8802, 10728, 11736, 14304, 15648, 16092, 17604, 21456, 23472, 24287, 32184, 35208, 42912, 46944, 48574, 64368, 70416, 72861, 97148, 128736, 140832, 145722, 194296, 218583, 291444, 388592, 437166, 582888, 655749, 777184, 874332, 1165776, 1311498, 1748664, 2331552, 2622996, 3497328, 5245992, 6994656, 10491984, 20983968]

約数ペア:

[(1, 20983968), (2, 10491984), (3, 6994656), (4, 5245992), (6, 3497328), (8, 2622996), (9, 2331552), (12, 1748664), (16, 1311498), (18, 1165776), (24, 874332), (27, 777184), (32, 655749), (36, 582888), (48, 437166), (54, 388592), (72, 291444), (96, 218583), (108, 194296), (144, 145722), (149, 140832), (163, 128736), (216, 97148), (288, 72861), (298, 70416), (326, 64368), (432, 48574), (447, 46944), (489, 42912), (596, 35208), (652, 32184), (864, 24287), (894, 23472), (978, 21456), (1192, 17604), (1304, 16092), (1341, 15648), (1467, 14304), (1788, 11736), (1956, 10728), (2384, 8802), (2608, 8046), (2682, 7824), (2934, 7152), (3576, 5868), (3912, 5364), (4023, 5216), (4401, 4768)]