21174088

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2789}}^1$

素因数の和:2881

約数の個数: 32

約数和(自身を含む): 43356600

約数和(自身を除く): 22182512

約数列:

[1, 2, 4, 8, 13, 26, 52, 73, 104, 146, 292, 584, 949, 1898, 2789, 3796, 5578, 7592, 11156, 22312, 36257, 72514, 145028, 203597, 290056, 407194, 814388, 1628776, 2646761, 5293522, 10587044, 21174088]

約数ペア:

[(1, 21174088), (2, 10587044), (4, 5293522), (8, 2646761), (13, 1628776), (26, 814388), (52, 407194), (73, 290056), (104, 203597), (146, 145028), (292, 72514), (584, 36257), (949, 22312), (1898, 11156), (2789, 7592), (3796, 5578)]