18688383

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 32685120

約数和(自身を除く): 13996737

約数列:

[1, 3, 7, 9, 21, 29, 53, 63, 87, 159, 193, 203, 261, 371, 477, 579, 609, 1113, 1351, 1537, 1737, 1827, 3339, 4053, 4611, 5597, 10229, 10759, 12159, 13833, 16791, 30687, 32277, 39179, 50373, 71603, 92061, 96831, 117537, 214809, 296641, 352611, 644427, 889923, 2076487, 2669769, 6229461, 18688383]

約数ペア:

[(1, 18688383), (3, 6229461), (7, 2669769), (9, 2076487), (21, 889923), (29, 644427), (53, 352611), (63, 296641), (87, 214809), (159, 117537), (193, 96831), (203, 92061), (261, 71603), (371, 50373), (477, 39179), (579, 32277), (609, 30687), (1113, 16791), (1351, 13833), (1537, 12159), (1737, 10759), (1827, 10229), (3339, 5597), (4053, 4611)]