1981775354

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1493}}^1\times {\mathrm{2687}}^1$

素因数の和:4214

約数の個数: 32

約数和(自身を含む): 3373332480

約数和(自身を除く): 1391557126

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 1493, 2687, 2986, 5374, 19409, 28367, 34931, 38818, 51053, 56734, 69862, 102106, 368771, 663689, 737542, 1327378, 4011691, 8023382, 52151983, 76222129, 104303966, 152444258, 990887677, 1981775354]

約数ペア:

[(1, 1981775354), (2, 990887677), (13, 152444258), (19, 104303966), (26, 76222129), (38, 52151983), (247, 8023382), (494, 4011691), (1493, 1327378), (2687, 737542), (2986, 663689), (5374, 368771), (19409, 102106), (28367, 69862), (34931, 56734), (38818, 51053)]