19089273

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 31518720

約数和(自身を除く): 12429447

約数列:

[1, 3, 7, 21, 31, 49, 59, 71, 93, 147, 177, 213, 217, 413, 497, 651, 1239, 1491, 1519, 1829, 2201, 2891, 3479, 4189, 4557, 5487, 6603, 8673, 10437, 12567, 12803, 15407, 29323, 38409, 46221, 87969, 89621, 107849, 129859, 205261, 268863, 323547, 389577, 615783, 909013, 2727039, 6363091, 19089273]

約数ペア:

[(1, 19089273), (3, 6363091), (7, 2727039), (21, 909013), (31, 615783), (49, 389577), (59, 323547), (71, 268863), (93, 205261), (147, 129859), (177, 107849), (213, 89621), (217, 87969), (413, 46221), (497, 38409), (651, 29323), (1239, 15407), (1491, 12803), (1519, 12567), (1829, 10437), (2201, 8673), (2891, 6603), (3479, 5487), (4189, 4557)]