19934271

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{173}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 34744320

約数和(自身を除く): 14810049

約数列:

[1, 3, 7, 9, 21, 31, 59, 63, 93, 173, 177, 217, 279, 413, 519, 531, 651, 1211, 1239, 1557, 1829, 1953, 3633, 3717, 5363, 5487, 10207, 10899, 12803, 16089, 16461, 30621, 37541, 38409, 48267, 71449, 91863, 112623, 115227, 214347, 316417, 337869, 643041, 949251, 2214919, 2847753, 6644757, 19934271]

約数ペア:

[(1, 19934271), (3, 6644757), (7, 2847753), (9, 2214919), (21, 949251), (31, 643041), (59, 337869), (63, 316417), (93, 214347), (173, 115227), (177, 112623), (217, 91863), (279, 71449), (413, 48267), (519, 38409), (531, 37541), (651, 30621), (1211, 16461), (1239, 16089), (1557, 12803), (1829, 10899), (1953, 10207), (3633, 5487), (3717, 5363)]