18718648

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9473}}^1$

素因数の和:9511

約数の個数: 32

約数和(自身を含む): 39790800

約数和(自身を除く): 21072152

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 9473, 18946, 37892, 75784, 123149, 179987, 246298, 359974, 492596, 719948, 985192, 1439896, 2339831, 4679662, 9359324, 18718648]

約数ペア:

[(1, 18718648), (2, 9359324), (4, 4679662), (8, 2339831), (13, 1439896), (19, 985192), (26, 719948), (38, 492596), (52, 359974), (76, 246298), (104, 179987), (152, 123149), (247, 75784), (494, 37892), (988, 18946), (1976, 9473)]