21650560

素因数分解:

$2^7\times 5^1\times {\mathrm{33829}}^1$

素因数の和:33848

約数の個数: 32

約数和(自身を含む): 51759900

約数和(自身を除く): 30109340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 33829, 67658, 135316, 169145, 270632, 338290, 541264, 676580, 1082528, 1353160, 2165056, 2706320, 4330112, 5412640, 10825280, 21650560]

約数ペア:

[(1, 21650560), (2, 10825280), (4, 5412640), (5, 4330112), (8, 2706320), (10, 2165056), (16, 1353160), (20, 1082528), (32, 676580), (40, 541264), (64, 338290), (80, 270632), (128, 169145), (160, 135316), (320, 67658), (640, 33829)]