21553168

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1$

素因数の和:272

約数の個数: 80

約数和(自身を含む): 52246656

約数和(自身を除く): 30693488

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 113, 131, 182, 208, 226, 262, 364, 452, 524, 728, 791, 904, 917, 1048, 1456, 1469, 1582, 1703, 1808, 1834, 2096, 2938, 3164, 3406, 3668, 5876, 6328, 6812, 7336, 10283, 11752, 11921, 12656, 13624, 14672, 14803, 20566, 23504, 23842, 27248, 29606, 41132, 47684, 59212, 82264, 95368, 103621, 118424, 164528, 190736, 192439, 207242, 236848, 384878, 414484, 769756, 828968, 1347073, 1539512, 1657936, 2694146, 3079024, 5388292, 10776584, 21553168]

約数ペア:

[(1, 21553168), (2, 10776584), (4, 5388292), (7, 3079024), (8, 2694146), (13, 1657936), (14, 1539512), (16, 1347073), (26, 828968), (28, 769756), (52, 414484), (56, 384878), (91, 236848), (104, 207242), (112, 192439), (113, 190736), (131, 164528), (182, 118424), (208, 103621), (226, 95368), (262, 82264), (364, 59212), (452, 47684), (524, 41132), (728, 29606), (791, 27248), (904, 23842), (917, 23504), (1048, 20566), (1456, 14803), (1469, 14672), (1582, 13624), (1703, 12656), (1808, 11921), (1834, 11752), (2096, 10283), (2938, 7336), (3164, 6812), (3406, 6328), (3668, 5876)]