648590973

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1\times {\mathrm{647}}^1$

素因数の和:1121

約数の個数: 32

約数和(自身を含む): 935193600

約数和(自身を除く): 286602627

約数列:

[1, 3, 19, 43, 57, 129, 409, 647, 817, 1227, 1941, 2451, 7771, 12293, 17587, 23313, 27821, 36879, 52761, 83463, 264623, 334153, 528599, 793869, 1002459, 1585797, 5027837, 11378789, 15083511, 34136367, 216196991, 648590973]

約数ペア:

[(1, 648590973), (3, 216196991), (19, 34136367), (43, 15083511), (57, 11378789), (129, 5027837), (409, 1585797), (647, 1002459), (817, 793869), (1227, 528599), (1941, 334153), (2451, 264623), (7771, 83463), (12293, 52761), (17587, 36879), (23313, 27821)]