21308917728

素因数分解:

$2^5\times 3^1\times 7^2\times {\mathrm{4529957}}^1$

素因数の和:4529984

約数の個数: 72

約数和(自身を含む): 65068316712

約数和(自身を除く): 43759398984

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 49, 56, 84, 96, 98, 112, 147, 168, 196, 224, 294, 336, 392, 588, 672, 784, 1176, 1568, 2352, 4704, 4529957, 9059914, 13589871, 18119828, 27179742, 31709699, 36239656, 54359484, 63419398, 72479312, 95129097, 108718968, 126838796, 144958624, 190258194, 217437936, 221967893, 253677592, 380516388, 434875872, 443935786, 507355184, 665903679, 761032776, 887871572, 1014710368, 1331807358, 1522065552, 1775743144, 2663614716, 3044131104, 3551486288, 5327229432, 7102972576, 10654458864, 21308917728]

約数ペア:

[(1, 21308917728), (2, 10654458864), (3, 7102972576), (4, 5327229432), (6, 3551486288), (7, 3044131104), (8, 2663614716), (12, 1775743144), (14, 1522065552), (16, 1331807358), (21, 1014710368), (24, 887871572), (28, 761032776), (32, 665903679), (42, 507355184), (48, 443935786), (49, 434875872), (56, 380516388), (84, 253677592), (96, 221967893), (98, 217437936), (112, 190258194), (147, 144958624), (168, 126838796), (196, 108718968), (224, 95129097), (294, 72479312), (336, 63419398), (392, 54359484), (588, 36239656), (672, 31709699), (784, 27179742), (1176, 18119828), (1568, 13589871), (2352, 9059914), (4704, 4529957)]