18487845

素因数分解:

$3^4\times 5^1\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:447

約数の個数: 40

約数和(自身を含む): 33454080

約数和(自身を除く): 14966235

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 191, 239, 405, 573, 717, 955, 1195, 1719, 2151, 2865, 3585, 5157, 6453, 8595, 10755, 15471, 19359, 25785, 32265, 45649, 77355, 96795, 136947, 228245, 410841, 684735, 1232523, 2054205, 3697569, 6162615, 18487845]

約数ペア:

[(1, 18487845), (3, 6162615), (5, 3697569), (9, 2054205), (15, 1232523), (27, 684735), (45, 410841), (81, 228245), (135, 136947), (191, 96795), (239, 77355), (405, 45649), (573, 32265), (717, 25785), (955, 19359), (1195, 15471), (1719, 10755), (2151, 8595), (2865, 6453), (3585, 5157)]