20246688021

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2683}}^1\times {\mathrm{18913}}^1$

素因数の和:21625

約数の個数: 32

約数和(自身を含む): 32489712640

約数和(自身を除く): 12243024619

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 2683, 8049, 18781, 18913, 50977, 56343, 56739, 132391, 152931, 356839, 359347, 397173, 1070517, 1078041, 2515429, 7546287, 50743579, 152230737, 355205053, 964128001, 1065615159, 2892384003, 6748896007, 20246688021]

約数ペア:

[(1, 20246688021), (3, 6748896007), (7, 2892384003), (19, 1065615159), (21, 964128001), (57, 355205053), (133, 152230737), (399, 50743579), (2683, 7546287), (8049, 2515429), (18781, 1078041), (18913, 1070517), (50977, 397173), (56343, 359347), (56739, 356839), (132391, 152931)]