20849361

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:146

約数の個数: 48

約数和(自身を含む): 33203520

約数和(自身を除く): 12354159

約数列:

[1, 3, 13, 17, 39, 41, 51, 59, 123, 169, 177, 221, 507, 533, 663, 697, 767, 1003, 1599, 2091, 2301, 2419, 2873, 3009, 6929, 7257, 8619, 9061, 9971, 13039, 20787, 27183, 29913, 31447, 39117, 41123, 94341, 117793, 123369, 169507, 353379, 408811, 508521, 534599, 1226433, 1603797, 6949787, 20849361]

約数ペア:

[(1, 20849361), (3, 6949787), (13, 1603797), (17, 1226433), (39, 534599), (41, 508521), (51, 408811), (59, 353379), (123, 169507), (169, 123369), (177, 117793), (221, 94341), (507, 41123), (533, 39117), (663, 31447), (697, 29913), (767, 27183), (1003, 20787), (1599, 13039), (2091, 9971), (2301, 9061), (2419, 8619), (2873, 7257), (3009, 6929)]