18731648

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{11257}}^1$

素因数の和:11284

約数の個数: 32

約数和(自身を含む): 40191060

約数和(自身を除く): 21459412

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 11257, 22514, 45028, 90056, 146341, 180112, 292682, 360224, 585364, 720448, 1170728, 1440896, 2341456, 4682912, 9365824, 18731648]

約数ペア:

[(1, 18731648), (2, 9365824), (4, 4682912), (8, 2341456), (13, 1440896), (16, 1170728), (26, 720448), (32, 585364), (52, 360224), (64, 292682), (104, 180112), (128, 146341), (208, 90056), (416, 45028), (832, 22514), (1664, 11257)]