19928961

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{2887}}^1$

素因数の和:2965

約数の個数: 24

約数和(自身を含む): 31536960

約数和(自身を除く): 11607999

約数列:

[1, 3, 9, 13, 39, 59, 117, 177, 531, 767, 2301, 2887, 6903, 8661, 25983, 37531, 112593, 170333, 337779, 510999, 1532997, 2214329, 6642987, 19928961]

約数ペア:

[(1, 19928961), (3, 6642987), (9, 2214329), (13, 1532997), (39, 510999), (59, 337779), (117, 170333), (177, 112593), (531, 37531), (767, 25983), (2301, 8661), (2887, 6903)]