19917832

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{2003}}^1$

素因数の和:2133

約数の個数: 32

約数和(自身を含む): 41122080

約数和(自身を除く): 21204248

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 113, 226, 452, 904, 1243, 2003, 2486, 4006, 4972, 8012, 9944, 16024, 22033, 44066, 88132, 176264, 226339, 452678, 905356, 1810712, 2489729, 4979458, 9958916, 19917832]

約数ペア:

[(1, 19917832), (2, 9958916), (4, 4979458), (8, 2489729), (11, 1810712), (22, 905356), (44, 452678), (88, 226339), (113, 176264), (226, 88132), (452, 44066), (904, 22033), (1243, 16024), (2003, 9944), (2486, 8012), (4006, 4972)]