21000363968

素因数分解:

$2^6\times {\mathrm{79}}^1\times {\mathrm{193}}^1\times {\mathrm{21521}}^1$

素因数の和:21805

約数の個数: 56

約数和(自身を含む): 42420722880

約数和(自身を除く): 21420358912

約数列:

[1, 2, 4, 8, 16, 32, 64, 79, 158, 193, 316, 386, 632, 772, 1264, 1544, 2528, 3088, 5056, 6176, 12352, 15247, 21521, 30494, 43042, 60988, 86084, 121976, 172168, 243952, 344336, 487904, 688672, 975808, 1377344, 1700159, 3400318, 4153553, 6800636, 8307106, 13601272, 16614212, 27202544, 33228424, 54405088, 66456848, 108810176, 132913696, 265827392, 328130687, 656261374, 1312522748, 2625045496, 5250090992, 10500181984, 21000363968]

約数ペア:

[(1, 21000363968), (2, 10500181984), (4, 5250090992), (8, 2625045496), (16, 1312522748), (32, 656261374), (64, 328130687), (79, 265827392), (158, 132913696), (193, 108810176), (316, 66456848), (386, 54405088), (632, 33228424), (772, 27202544), (1264, 16614212), (1544, 13601272), (2528, 8307106), (3088, 6800636), (5056, 4153553), (6176, 3400318), (12352, 1700159), (15247, 1377344), (21521, 975808), (30494, 688672), (43042, 487904), (60988, 344336), (86084, 243952), (121976, 172168)]