19217588

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{367}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 38949120

約数和(自身を除く): 19731532

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 53, 76, 106, 212, 247, 367, 494, 689, 734, 988, 1007, 1378, 1468, 2014, 2756, 4028, 4771, 6973, 9542, 13091, 13946, 19084, 19451, 26182, 27892, 38902, 52364, 77804, 90649, 181298, 252863, 362596, 369569, 505726, 739138, 1011452, 1478276, 4804397, 9608794, 19217588]

約数ペア:

[(1, 19217588), (2, 9608794), (4, 4804397), (13, 1478276), (19, 1011452), (26, 739138), (38, 505726), (52, 369569), (53, 362596), (76, 252863), (106, 181298), (212, 90649), (247, 77804), (367, 52364), (494, 38902), (689, 27892), (734, 26182), (988, 19451), (1007, 19084), (1378, 13946), (1468, 13091), (2014, 9542), (2756, 6973), (4028, 4771)]