18937215

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{571}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 36406656

約数和(自身を除く): 17469441

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 67, 99, 165, 201, 335, 495, 571, 603, 737, 1005, 1713, 2211, 2855, 3015, 3685, 5139, 6281, 6633, 8565, 11055, 18843, 25695, 31405, 33165, 38257, 56529, 94215, 114771, 191285, 282645, 344313, 420827, 573855, 1262481, 1721565, 2104135, 3787443, 6312405, 18937215]

約数ペア:

[(1, 18937215), (3, 6312405), (5, 3787443), (9, 2104135), (11, 1721565), (15, 1262481), (33, 573855), (45, 420827), (55, 344313), (67, 282645), (99, 191285), (165, 114771), (201, 94215), (335, 56529), (495, 38257), (571, 33165), (603, 31405), (737, 25695), (1005, 18843), (1713, 11055), (2211, 8565), (2855, 6633), (3015, 6281), (3685, 5139)]