18963945

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1$

素因数の和:463

約数の個数: 96

約数和(自身を含む): 44239104

約数和(自身を除く): 25275159

約数列:

[1, 3, 5, 7, 9, 11, 13, 15, 21, 33, 35, 39, 45, 55, 63, 65, 77, 91, 99, 105, 117, 143, 165, 195, 231, 273, 315, 385, 421, 429, 455, 495, 585, 693, 715, 819, 1001, 1155, 1263, 1287, 1365, 2105, 2145, 2947, 3003, 3465, 3789, 4095, 4631, 5005, 5473, 6315, 6435, 8841, 9009, 13893, 14735, 15015, 16419, 18945, 23155, 26523, 27365, 32417, 38311, 41679, 44205, 45045, 49257, 60203, 69465, 82095, 97251, 114933, 132615, 162085, 180609, 191555, 208395, 246285, 291753, 301015, 344799, 421421, 486255, 541827, 574665, 903045, 1264263, 1458765, 1723995, 2107105, 2709135, 3792789, 6321315, 18963945]

約数ペア:

[(1, 18963945), (3, 6321315), (5, 3792789), (7, 2709135), (9, 2107105), (11, 1723995), (13, 1458765), (15, 1264263), (21, 903045), (33, 574665), (35, 541827), (39, 486255), (45, 421421), (55, 344799), (63, 301015), (65, 291753), (77, 246285), (91, 208395), (99, 191555), (105, 180609), (117, 162085), (143, 132615), (165, 114933), (195, 97251), (231, 82095), (273, 69465), (315, 60203), (385, 49257), (421, 45045), (429, 44205), (455, 41679), (495, 38311), (585, 32417), (693, 27365), (715, 26523), (819, 23155), (1001, 18945), (1155, 16419), (1263, 15015), (1287, 14735), (1365, 13893), (2105, 9009), (2145, 8841), (2947, 6435), (3003, 6315), (3465, 5473), (3789, 5005), (4095, 4631)]