16680405

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6907}}^1$

素因数の和:6945

約数の個数: 32

約数和(自身を含む): 31832064

約数和(自身を除く): 15151659

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 483, 805, 2415, 6907, 20721, 34535, 48349, 103605, 145047, 158861, 241745, 476583, 725235, 794305, 1112027, 2382915, 3336081, 5560135, 16680405]

約数ペア:

[(1, 16680405), (3, 5560135), (5, 3336081), (7, 2382915), (15, 1112027), (21, 794305), (23, 725235), (35, 476583), (69, 241745), (105, 158861), (115, 145047), (161, 103605), (345, 48349), (483, 34535), (805, 20721), (2415, 6907)]