20149965

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4523}}^1$

素因数の和:4551

約数の個数: 40

約数和(自身を含む): 39413088

約数和(自身を除く): 19263123

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 297, 405, 495, 891, 1485, 4455, 4523, 13569, 22615, 40707, 49753, 67845, 122121, 149259, 203535, 248765, 366363, 447777, 610605, 746295, 1343331, 1831815, 2238885, 4029993, 6716655, 20149965]

約数ペア:

[(1, 20149965), (3, 6716655), (5, 4029993), (9, 2238885), (11, 1831815), (15, 1343331), (27, 746295), (33, 610605), (45, 447777), (55, 366363), (81, 248765), (99, 203535), (135, 149259), (165, 122121), (297, 67845), (405, 49753), (495, 40707), (891, 22615), (1485, 13569), (4455, 4523)]