19720556

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{7013}}^1$

素因数の和:7073

約数の個数: 24

約数和(自身を含む): 37314480

約数和(自身を除く): 17593924

約数列:

[1, 2, 4, 19, 37, 38, 74, 76, 148, 703, 1406, 2812, 7013, 14026, 28052, 133247, 259481, 266494, 518962, 532988, 1037924, 4930139, 9860278, 19720556]

約数ペア:

[(1, 19720556), (2, 9860278), (4, 4930139), (19, 1037924), (37, 532988), (38, 518962), (74, 266494), (76, 259481), (148, 133247), (703, 28052), (1406, 14026), (2812, 7013)]