19771353

素因数分解:

$3^2\times 7^2\times {\mathrm{107}}^1\times {\mathrm{419}}^1$

素因数の和:546

約数の個数: 36

約数和(自身を含む): 33611760

約数和(自身を除く): 13840407

約数列:

[1, 3, 7, 9, 21, 49, 63, 107, 147, 321, 419, 441, 749, 963, 1257, 2247, 2933, 3771, 5243, 6741, 8799, 15729, 20531, 26397, 44833, 47187, 61593, 134499, 184779, 313831, 403497, 941493, 2196817, 2824479, 6590451, 19771353]

約数ペア:

[(1, 19771353), (3, 6590451), (7, 2824479), (9, 2196817), (21, 941493), (49, 403497), (63, 313831), (107, 184779), (147, 134499), (321, 61593), (419, 47187), (441, 44833), (749, 26397), (963, 20531), (1257, 15729), (2247, 8799), (2933, 6741), (3771, 5243)]