19807047

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 32800768

約数和(自身を除く): 12993721

約数列:

[1, 3, 9, 13, 31, 39, 43, 93, 117, 127, 129, 279, 381, 387, 403, 559, 1143, 1209, 1333, 1651, 1677, 3627, 3937, 3999, 4953, 5031, 5461, 11811, 11997, 14859, 16383, 17329, 35433, 49149, 51181, 51987, 70993, 153543, 155961, 169291, 212979, 460629, 507873, 638937, 1523619, 2200783, 6602349, 19807047]

約数ペア:

[(1, 19807047), (3, 6602349), (9, 2200783), (13, 1523619), (31, 638937), (39, 507873), (43, 460629), (93, 212979), (117, 169291), (127, 155961), (129, 153543), (279, 70993), (381, 51987), (387, 51181), (403, 49149), (559, 35433), (1143, 17329), (1209, 16383), (1333, 14859), (1651, 11997), (1677, 11811), (3627, 5461), (3937, 5031), (3999, 4953)]